Gaoqing Yuan

Name: 袁高清; Yuan, GaoQing

Organization: South China University of Technology , China

Department: School of Chemistry and Chemical Engineering

Title: Professor(PhD)

Chemicals
References

nBu4NI-catalyzed oxidative cross-coupling of carbon dioxide, amines, and aryl ketones: access to O-β-oxoalkyl carbamates

Co-reporter:Youbin Peng;Juan Liu;Chaorong Qi;Jiawei Li;Huanfeng Jiang

Chemical Communications 2017 vol. 53(Issue 18) pp:2665-2668

Publication Date(Web):2017/02/28

DOI:10.1039/C6CC09762F

The first nBu4NI-catalyzed oxidative cross-coupling reaction of carbon dioxide, amines and arylketones has been successfully developed by using TBHP as the oxidant, providing an efficient, atom-economical and metal-free strategy for the synthesis of a range of O-β-oxoalkyl carbamates.

Highly efficient In–Sn alloy catalysts for electrochemical reduction of CO2 to formate

Co-reporter:Qiang Lai, Na Yang, Gaoqing Yuan

Electrochemistry Communications 2017 Volume 83(Volume 83) pp:

Publication Date(Web):1 October 2017

DOI:10.1016/j.elecom.2017.08.015

•GDE-In0.90Sn0.10 is superior as a catalyst compared with the other In-Sn alloys studied and the single metal electrodes.•With GDE-In0.90Sn0.10 as the catalyst, the Faradaic efficiency towards formate production reaches 92%.•The activity of GDE-In0.90Sn0.10 remains stable for 20 h.•The excellent catalytic performance of GDE-In0.90Sn0.10 is attributed to its composition, crystal structure and nanostructure.Gas diffusion electrodes (GDEs), including GDE-In0.90Sn0.10, GDE-In0.47Sn0.53 and GDE-In0.22Sn0.78, were prepared by electrodeposition of In–Sn alloys on carbon fiber paper, and then used to explore the electroreduction of CO2 to formate in aqueous solution. Compared with commercial indium or Sn foil catalysts, the GDE-In0.90Sn0.10 electrode in particular is shown to have excellent catalytic performance towards electroreduction of CO2 to formate, with a high Faradaic efficiency (~ 92%). More importantly, the catalytic activity of GDE-In0.90Sn0.10 remained reasonably stable over a 22-hour period of electrolysis, and a relatively high electrolytic current density (15 mA cm− 2) was obtained in an aqueous medium, demonstrating its potential for electrochemical reduction of CO2 to formate.Download high-res image (156KB)Download full-size image

The modified-Mannich reaction: Conversion of arylboronic acids and subsequent coupling with paraformaldehyde and amines toward the one-pot synthesis of Mannich bases and benzoxazines

Co-reporter:Juan Liu, Gaoqing Yuan

Tetrahedron Letters 2017 Volume 58, Issue 15(Issue 15) pp:

Publication Date(Web):12 April 2017

DOI:10.1016/j.tetlet.2017.02.081

•A novel one-pot route is developed to synthesize Mannich bases and benzoxazines.•The reaction proceeds with high yields and a remarkable ortho-selectivity.•Secondary amines with arylboronic acids and paraformaldehyde yield Mannich bases.•Primary amines with arylboronic acids and paraformaldehyde result in benzoxazines.A modified Mannich reaction has been developed for the synthesis of Mannich bases and benzoxazines via the oxidative hydroxylation of arylboronic acids and subsequent coupling with paraformaldehyde and amines in one pot. This modified Mannich reaction is easily carried out to afford the target products in good to excellent yields and tolerates a variety of functional groups.Download high-res image (54KB)Download full-size image

I2/TBHP Mediated C–N and C–H Bond Cleavage of Tertiary Amines toward Selective Synthesis of Sulfonamides and β-Arylsulfonyl Enamines: The Solvent Effect on Reaction

Co-reporter:Junyi Lai, Liming Chang, and Gaoqing Yuan

Organic Letters 2016 Volume 18(Issue 13) pp:3194-3197

Publication Date(Web):June 21, 2016

DOI:10.1021/acs.orglett.6b01412

A novel method toward synthesis of sulfonamides and β-arylsulfonyl enamines has been developed via I2/TBHP mediated C–N and C–H bond cleavage of tertiary amines, which features highly selective formation of two different target products depending on the reaction solvent. The experimental results reveal that H2O as the solvent could effectively achieve the C–N bond cleavage to produce sulfonamides due to H2O participating in the reaction process where H2O plays a dual role. Differing from H2O, organic solvents (such as dimethyl sulfoxide) could promote the C–H bond cleavage of tertiary amines to yield β-arylsulfonyl enamines.

A novel electrochemical conversion of CO2 with aryl hydrazines and paraformaldehyde into 1,3,4-oxadiazol-2(3H)-one derivatives in one step

Co-reporter:Na Yang, Qiang Lai, Huanfeng Jiang, Gaoqing Yuan

Electrochemistry Communications 2016 Volume 72() pp:109-112

Publication Date(Web):November 2016

DOI:10.1016/j.elecom.2016.09.016

•Using CO2 to replace toxic phosgene or CO as the C1 synthon.•The electrochemical conversion of CO2 with aryl hydrazines and paraformaldehyde into 1,3,4-oxadiazol-2(3H)-one derivatives in one step.•The present work provides a new route to synthesize 1,3,4-oxadiazol-2(3H)-one derivatives and utilize CO2.•I2 and base electrogenerated in situ play a significant role in the transformation.Using CO2 to replace phosgene or CO as the C1 synthon, we successfully achieved the one-pot electrochemical synthesis of 1,3,4-oxadiazol-2(3H)-one derivatives via a three-component coupling reaction of CO2 with aryl hydrazines and paraformaldehyde in an undivided cell. With NaI as the electro-catalyst and t-BuOK as the base, this electrochemical process could be smoothly performed to afford the target products in good to high yields at room temperature.

One-pot synthesis of α-acyloxycarbonyl compounds via oxidative decarboxylation coupling reaction of α-oxo carboxylic acids with carbonyl compounds

Co-reporter:Li-Ming Chang, Gao-Qing Yuan

Tetrahedron 2016 Volume 72(Issue 44) pp:7003-7007

Publication Date(Web):3 November 2016

DOI:10.1016/j.tet.2016.09.031

With tetrabutylammonium iodide (TBAI) as the catalyst and tert-butyl hydroperoxide (TBHP) as the oxidant, a simple metal-free protocol has been developed for the synthesis of α-acyloxycarbonyl compounds from carbonyl compounds and α-oxo carboxylic acids via decarboxylative coupling reaction. The target products could be obtained in moderate to high yields.

Synthesis of sulfonamides via I2-mediated reaction of sodium sulfinates with amines in an aqueous medium at room temperature

Co-reporter:Xiaojun Pan, Jian Gao, Juan Liu, Junyi Lai, Huanfeng Jiang and Gaoqing Yuan

Green Chemistry 2015 vol. 17(Issue 3) pp:1400-1403

Publication Date(Web):22 Dec 2014

DOI:10.1039/C4GC02115K

An efficient I2-mediated approach for the synthesis of sulfonamides at room temperature using water as the solvent has been developed. This method for the synthesis of sulfonamides is quite convenient and environmentally friendly. In addition, the purification procedure of the desired products becomes very easy.

NH4I-Mediated Three-Component Coupling Reaction: Metal-Free Synthesis of β-Alkoxy Methyl Sulfides from DMSO, Alcohols, and Styrenes

Co-reporter:Xiaofang Gao, Xiaojun Pan, Jian Gao, Huanfeng Jiang, Gaoqing Yuan, and Yingwei Li

Organic Letters 2015 Volume 17(Issue 4) pp:1038-1041

Publication Date(Web):February 11, 2015

DOI:10.1021/acs.orglett.5b00170

A novel synthesis recipe for β-alkoxy methyl sulfides was developed via NH4I-mediated three-component oxysulfenylation reaction of styrenes with DMSO and alcohols. This method features simple operation and readily available starting materials, and it provides an alternative sulfenylating agent generated from DMSO for oxysulfenylation reactions.

Ammonium iodide-induced sulfonylation of alkenes with DMSO and water toward the synthesis of vinyl methyl sulfones

Co-reporter:Xiaofang Gao, Xiaojun Pan, Jian Gao, Huawen Huang, Gaoqing Yuan and Yingwei Li

Chemical Communications 2015 vol. 51(Issue 1) pp:210-212

Publication Date(Web):04 Nov 2014

DOI:10.1039/C4CC07606K

A novel ammonium iodide-induced sulfonylation of alkenes with DMSO and water toward the synthesis of vinyl methyl sulfones is described. The process proceeded smoothly under metal-free conditions with high stereoselectivity and good functional group tolerance. The reaction mechanism was revealed to proceed through a domino reaction of oxidation and elimination after the radical addition to alkenes.

Iodine-mediated synthesis of (E)-vinyl sulfones from sodium sulfinates and cinnamic acids in aqueous medium

Co-reporter:Jian Gao, Junyi Lai and Gaoqing Yuan

RSC Advances 2015 vol. 5(Issue 82) pp:66723-66726

Publication Date(Web):28 Jul 2015

DOI:10.1039/C5RA10896A

With water as the reaction medium, a green and efficient method has been developed for the synthesis of (E)-vinyl sulfones via I2-mediated decarboxylative cross-coupling reactions of sodium sulfinates with cinnamic acids. This synthetic route could effectively avoid the use of toxic organic solvents and transition metal catalysts, and the target products could be obtained with moderate to excellent yields under green and mild conditions.

Iodine-induced synthesis of sulfonate esters from sodium sulfinates and phenols under mild conditions

Co-reporter:Jian Gao, Xiaojun Pan, Juan Liu, Junyi Lai, Liming Chang and Gaoqing Yuan

RSC Advances 2015 vol. 5(Issue 35) pp:27439-27442

Publication Date(Web):12 Mar 2015

DOI:10.1039/C5RA00724K

An iodine-induced synthesis of sulfonate esters via cross-coupling reactions of sodium sulfinates with phenols is reported. This synthetic route is low-cost, facile, green and efficient, and could afford the target products with good to excellent yields under mild conditions.

Ammonium iodide-promoted cyclization of ketones with DMSO and ammonium acetate for synthesis of substituted pyridines

Co-reporter:Xiaojun Pan, Qiao Liu, Liming Chang and Gaoqing Yuan

RSC Advances 2015 vol. 5(Issue 63) pp:51183-51187

Publication Date(Web):04 Jun 2015

DOI:10.1039/C5RA07584J

A simple and efficient method has been developed for the synthesis of symmetrical and unsymmetrical pyridines via NH4I-promoted cyclization of ketones with DMSO and NH4OAc. It was found that methyl ketones always gave selective formation of the unsymmetrical pyridine, while non-methyl ketones gave unpredictable results (symmetrical or non-symmetrical product only, or a mixture of the two). In addition, the deuterium-labeling experiments indicated that the C4 or C6 of the target product pyridine rings resulted from DMSO.

An efficient electrochemical synthesis of β-keto sulfones from sulfinates and 1,3-dicarbonyl compounds

Co-reporter:Xiao-Jun Pan, Jian Gao, Gao-Qing Yuan

Tetrahedron 2015 Volume 71(Issue 34) pp:5525-5530

Publication Date(Web):26 August 2015

DOI:10.1016/j.tet.2015.06.063

An efficient electrochemical synthesis of β-keto sulfones from sulfinates and 1,3-dicarbonyl compounds has been developed. The present electrochemical route could afford the target products in high to excellent yields under mild conditions.

An efficient electrochemical synthesis of vinyl sulfones from sodium sulfinates and olefins

Co-reporter:Yan-Chun Luo, Xiao-Jun Pan, Gao-Qing Yuan

Tetrahedron 2015 Volume 71(Issue 14) pp:2119-2123

Publication Date(Web):8 April 2015

DOI:10.1016/j.tet.2015.02.048

An electrochemical conversion of olefins with sodium sulfinates into vinyl sulfones was described. The in situ electrogenerated I2 could effectively promote this conversion to afford the target products in good to excellent yields at room temperature. Compared with the traditional thermo-chemical method, this electrochemical route was more convenient and efficient.

Electrochemically promoted synthesis of polysubstituted oxazoles from β-diketone derivatives and benzylamines under mild conditions

Co-reporter:Gaoqing Yuan, Zechen Zhu, Xiaofang Gao and Huanfeng Jiang

RSC Advances 2014 vol. 4(Issue 46) pp:24300-24303

Publication Date(Web):27 May 2014

DOI:10.1039/C4RA03865G

An efficient electrochemical synthesis of poly-substituted oxazoles from readily available β-diketone derivatives and benzylamines is described. This electrochemical procedure does not need hazardous oxidants and transition metal catalysts as well as molecular I2 additives. Compared with the traditional thermo-chemical method, the present electrochemical method is greener and more efficient.

Efficient conversion of CO2 with olefins into cyclic carbonates via a synergistic action of I2 and base electrochemically generated in situ

Co-reporter:Xiaofang Gao, Gaoqing Yuan, Huoji Chen, Huanfeng Jiang, Yingwei Li, Chaorong Qi

Electrochemistry Communications 2013 Volume 34() pp:242-245

Publication Date(Web):September 2013

DOI:10.1016/j.elecom.2013.06.022

•Direct electrochemical conversion of CO2 with various olefins into cyclic carbonates.•With NH4I as the supporting electrolyte and graphite as the inert anode•I2 and NH3 electrogenerated in situ play a key role in the conversion.•The target product was obtained in good to excellent yields under mild conditions.•The process avoids the use of hazardous oxidants and expensive catalysts.With NH4I as the supporting electrolyte and graphite as the inert anode, a new and highly efficient electrochemical route was developed for the direct conversion of CO2 with olefins into cyclic carbonates. Upon the synergistic action of I2 and NH3 electrochemically generated in situ, CO2 with a wide range of olefins could be smoothly transformed to cyclic carbonates in good to excellent yields under mild conditions.

Electrochemical synthesis of amides: direct transformation of methyl ketones with formamides

Co-reporter:Haolai Huang, Gaoqing Yuan, Xianwei Li, Huanfeng Jiang

Tetrahedron Letters 2013 Volume 54(Issue 52) pp:7156-7159

Publication Date(Web):25 December 2013

DOI:10.1016/j.tetlet.2013.10.101

A direct transformation from methyl ketones to secondary or tertiary amides has been developed through a novel electrochemical approach and a wide scope of formamides could be utilized as the amide sources. This transformation was promoted by in situ generated iodine through electrolysis of sodium iodide under mild, metal-free conditions. This electrochemical procedure could avoid the use of stoichiometric iodine and afforded the target products in good to excellent yields.

Copper-catalyzed electrochemical synthesis of alkylidene lactones from carbon dioxide and 1,4-diarylbuta-1,3-diynes

Co-reporter:Chuan-Hua Li, Gao-Qing Yuan, Chao-Rong Qi, Huan-Feng Jiang

Tetrahedron 2013 69(15) pp: 3135-3140

Publication Date(Web):

DOI:10.1016/j.tet.2013.02.089

Copper-catalyzed aerobic oxidation and cleavage/formation of C–S bond: a novel synthesis of aryl methyl sulfones from aryl halides and DMSO

Co-reporter:Gaoqing Yuan, Junhua Zheng, Xiaofang Gao, Xianwei Li, Liangbin Huang, Huoji Chen and Huanfeng Jiang

Chemical Communications 2012 vol. 48(Issue 60) pp:7513-7515

Publication Date(Web):08 Jun 2012

DOI:10.1039/C2CC32964F

With atmospheric oxygen as the oxidant, a novel copper(I)-catalyzed synthesis of aryl methyl sulfones from aryl halides and widely available DMSO is described. The procedure tolerates aryl halides with various functional groups (such as methoxy, acetyl, chloro, fluoro and nitro groups), which could afford aryl methyl sulfones in moderate to high yields. The copper-catalyzed aerobic oxidation and the cleavage/formation of C–S bond are the key steps for this transformation.

Morphology-controllable electrochemical synthesis and photoluminescence properties of ZnO nanocrystals with porous structures

Co-reporter:Gaoqing Yuan, Jinbao Zhu, Chuanhua Li and Xiaofang Gao

CrystEngComm 2012 vol. 14(Issue 21) pp:7450-7457

Publication Date(Web):17 Aug 2012

DOI:10.1039/C2CE26044A

A modified electrochemical route was developed to deposit powdery ZnO nanocrystals. The approach is based on sodium citrate acting as the supporting electrolyte as well as a complex agent, Zn2+ ions resulting from the electro-oxidation of a Zn anode rather than zinc salts, and a H2O–EtOH mixed-solvent as the electrolytic medium. The supporting electrolytes, electrolytic media and additives play important roles in controlling the morphology of ZnO crystals. Under the synergetic action of the complex effect of citrate ions and solvent effect of H2O–EtOH (or electrostatic-adsorption of additives), ZnO nanoparticles could self-assemble to the nanocrystals with porous structures (such as nanospheres, nanoflowers and coral-like nanocrystals) without templates. The morphology of the ZnO crystals could evolve from nanospheres to nanorods or nanospindles by changing the electrolytic media or supporting electrolytes. A possible growth mechanism of the ZnO nanocrystals with different shapes was also discussed. In addition, further studies indicate that the prepared nanospheres (or nanoflowers) with hollow or porous structures have better photoluminescence performances than the nanorods.

Carbon dioxide-mediated synthesis of 3(2H)-furanones from diyne alcohols

Co-reporter:Gaoqing Yuan, Zaijun He, Junhua Zheng, Zhengwang Chen, Huawen Huang, Dabin Shi, Chaorong Qi, Huanfeng Jiang

Tetrahedron Letters 2011 Volume 52(Issue 45) pp:5956-5959

Publication Date(Web):9 November 2011

DOI:10.1016/j.tetlet.2011.08.130

A novel type of carbon dioxide-mediated reaction of diyne alcohols without any metal catalysts was reported. Carbon dioxide held the key to the success of this reaction, in which 3(2H)-furanones were selectively obtained in moderate to high yields.

Electrosynthesis and catalytic properties of magnesium oxide nanocrystals with porous structures

Co-reporter:Gaoqing Yuan, Junhua Zheng, Chang Lin, Xiaoying Chang, Huanfeng Jiang

Materials Chemistry and Physics 2011 Volume 130(1–2) pp:387-391

Publication Date(Web):17 October 2011

DOI:10.1016/j.matchemphys.2011.06.058

The modified electrochemical route, with aqueous NaNO3 as electrolyte and Mg as the sacrificial anode, has been applied to synthesize the precursor Mg(OH)2 nanocrystals (nanopowders) with different shapes at room temperature. Mg2+ and OH− ions are electrogenerated in situ so that the formation and growth rate of Mg(OH)2 could be easily controlled via adjusting current density. In the low current density (3 mA cm−2) case, Mg(OH)2 nanocrystals with porous flower-like structures could be obtained via a self-assembly process, while the electrodeposition with high current density (20 mA cm−2) could afford Mg(OH)2 nanosheets. Through the calcination at 450 °C, the precursors Mg(OH)2 crystals could be easily transformed into MgO crystals, which could reserve well-defined shapes of the precursors (nanoflowers and nanosheets). Furthermore, the obtained MgO nanocrystals, especially porous nanoflowers, exhibit high catalytic activities for the reaction of CO2 with propylene oxide in the absence of any organic solvents or assisted additives.Graphical abstractHighlights► The electrosynthesis of the precursor Mg(OH)2 nanocrystals with porous structures. ► The shape of Mg(OH)2 is greatly dependent on current density. ► The obtained MgO nanocrystals could well reserve the shapes of the precursors. ► The porous MgO nanocrystals could effectively catalyze the reaction of CO2 with propylene oxide.

Electrosynthesis and catalytic properties of silver nano/microparticles with different morphologies

Co-reporter:Gaoqing Yuan, Xiaoying Chang, Guojun Zhu

Particuology 2011 Volume 9(Issue 6) pp:644-649

Publication Date(Web):December 2011

DOI:10.1016/j.partic.2011.03.011

Electrosynthesis of powdery silver particles can be effectively carried out with an H2O–oleic acid or an H2O–glycerol mix solvent (volume ratio 1:1) as the electrolytic medium and AgNO3 as the supporting electrolyte. Experimental results indicate that the presence or absence of the surfactant sodium dodecyl sulfate (SDS) and the choice of electrolytic medium have a significant impact on the shape and size of the prepared Ag particles. With H2O–glycerol as the electrolytic medium, spherical Ag nanoparticles can be obtained in the presence of SDS (0.6 g/L), while an Ag sample electrodeposited without SDS has a dendritic microcrystalline structure. For the reduction of methyl orange (MO) and methylene blue (MB) with NaBH4 as the reducing agent, the spherical Ag nanoparticles exhibit much better catalytic activity than the dendritic Ag microparticles. Further investigations show that surface modification by an oleic acid medium could greatly improve the catalytic activity of the electrodeposited Ag particles for the reduction of MO and MB.Silver nano/microparticles with different shapes were synthesized via the electrochemical route, and their catalytic activities were examined for the reduction, showing spherical Ag nanoparticles exhibit much better catalytic activity than dendritic Ag microparticles, and surface modification with oleic acid can greatly improve the catalytic activity of the electrodeposited Ag particles.

Electrocarboxylation of Carbon Dioxide with Polycyclic Aromatic Hydrocarbons Using Ni as the Cathode

Co-reporter:Dr. Gaoqing Yuan;Liuguan Li;Huanfeng Jiang;Chaorong Qi ;Fengchun Xie

Chinese Journal of Chemistry 2010 Volume 28( Issue 10) pp:1983-1988

Publication Date(Web):

DOI:10.1002/cjoc.201090331

Abstract

Using Ni cathode and Al sacrificial anode, the electrocarboxylation of polycyclic aromatic hydrocarbons (naphthalene, 5-methylnaphthalene, anthracene, phenanthrene and 1H-indene) with carbon dioxide (4 MPa) could be successfully performed in an undivided cell containing n-Bu₄NBr-DMF supporting electrolyte with a constant current at room temperature, affording the corresponding trans-dicarboxylic acids in good to excellent yields (62% –90%). Among the examined cathode materials (Ni, Pt, Ag, Cu and Zn), Ni and Pt cathodes exhibited a good catalytic activity for the electrocarboxylations. In addition, the experimental results indicated that electrolytic conditions (conducting salts, electricity, CO₂ pressure and temperature) could also affect the result of the electrocarboxylation. According to the results of the electrocarboxylations and CV (cyclic voltammetry), a possible electrochemical reaction mechanism was also proposed.

Electrochemically catalyzed synthesis of cyclic carbonates from CO2 and propargyl alcohols

Co-reporter:Gao-Qing Yuan, Guo-Jun Zhu, Xiao-Ying Chang, Chao-Rong Qi, Huan-Feng Jiang

Tetrahedron 2010 66(52) pp: 9981-9985

Publication Date(Web):

DOI:10.1016/j.tet.2010.10.039

Electrosyntheses of -Hydroxycarboxylic Acids from Carbon Dioxide and Aromatic Ketones Using Nickel as the Cathode

Co-reporter:Gaoqing YUAN;Zhifa LI ;Huanfeng JIANG

Chinese Journal of Chemistry 2009 Volume 27( Issue 8) pp:1464-1470

Publication Date(Web):

DOI:10.1002/cjoc.200990246

Abstract

With Ni as the cathode and Al as the anode, aromatic ketones (acetophenone, benzophenone, 6-methoxy-2-acetonaphthone, 4-methylacetophenone and 4-methoxyacetophenone) could be successfully electrocarboxylated with CO₂ (4 MPa) in an undivided cell containing n-Bu₄NBr-DMF electrolyte at a constant current under room temperature, affording the corresponding α-hydroxycarboxylic acids in good to excellent yields (56%–90%). The experimental results showed that the yields of the target products were strongly dependent on the nature of cathode materials and aromatic ketones as well as electrolytic conditions (such as electricity, substrate concentrations, conducting salts and solvents, CO₂ pressure). In addition, it was found that the presence of protic agent such as water would lead to the increase of pinacol byproducts. The reaction mechanism was briefly discussed by CV experiments.

Mg(OH)Cl/KI as a Highly Active Heterogeneous Catalyst for the Synthesis of Cyclic Carbonates from CO2 and Epoxides under Solvent-Free Conditions

Co-reporter:Gao-Qing YUAN;Yan-Juan SHAN;Huan-Feng JIANG ;Chao-Rong QI

Chinese Journal of Chemistry 2008 Volume 26( Issue 5) pp:947-951

Publication Date(Web):

DOI:10.1002/cjoc.200890173

Abstract

The combination of magnesium hydroxyl chloride [Mg(OH)Cl] with KI could efficiently catalyze the coupling reaction of carbon dioxide with epoxides to give the corresponding cyclic carbonates in good to excellent yields (75.0% –98.3%) and high selectivity (99.6%) in the absence of organic solvents. The heterogeneous catalyst Mg(OH)Cl/KI could be reused at least six times almost without loss of the catalytic activity. The influence of some key factors (such as molar ratio of Mg(OH)Cl to KI, temperature, reaction time and CO₂ pressure) on the reaction was also discussed.

Copper-catalyzed aerobic oxidation and cleavage/formation of C–S bond: a novel synthesis of aryl methyl sulfones from aryl halides and DMSO

Co-reporter:Gaoqing Yuan, Junhua Zheng, Xiaofang Gao, Xianwei Li, Liangbin Huang, Huoji Chen and Huanfeng Jiang

Chemical Communications 2012 - vol. 48(Issue 60) pp:NaN7515-7515

Publication Date(Web):2012/06/08

DOI:10.1039/C2CC32964F

Ammonium iodide-induced sulfonylation of alkenes with DMSO and water toward the synthesis of vinyl methyl sulfones

Co-reporter:Xiaofang Gao, Xiaojun Pan, Jian Gao, Huawen Huang, Gaoqing Yuan and Yingwei Li

Chemical Communications 2015 - vol. 51(Issue 1) pp:NaN212-212

Publication Date(Web):2014/11/04

DOI:10.1039/C4CC07606K

nBu4NI-catalyzed oxidative cross-coupling of carbon dioxide, amines, and aryl ketones: access to O-β-oxoalkyl carbamates

Co-reporter:Youbin Peng, Juan Liu, Chaorong Qi, Gaoqing Yuan, Jiawei Li and Huanfeng Jiang