Eisuke Kaji - Cochemist

Chemicals
References

Thermodynamically Controlled Regioselective Glycosylation of Fully Unprotected Sugars through Bis(boronate) Intermediates

Co-reporter:Eisuke Kaji;Daisuke Yamamoto;Yuko Shirai;Koji Ishige;Yoshika Arai;Tatsuya Shirahata;Kazuishi Makino ;Takashi Nishino

European Journal of Organic Chemistry 2014 Volume 2014( Issue 17) pp:3536-3539

Publication Date(Web):

DOI:10.1002/ejoc.201402255

Abstract

Fully unprotected D-glucose, D-mannose, and D-fructose were regioselectively glycosylated with several phenylthioglycosides to afford glycosyl-β(16)-α/β-D-glucopyranose, glycosyl-β(11)-α-D-mannofuranoside, and glycosyl-β(11)-β-D-fructopyranose in good yields. The regioselectivity might have arisen from a thermodynamically controlled bis(phenylboronate) intermediate, which leaves only one free hydroxy group to be glycosylated in complete regioselectivity.

Regioselective glycosylation of fully unprotected methyl hexopyranosides by means of transient masking of hydroxy groups with arylboronic acids

Co-reporter:Eisuke Kaji, Takashi Nishino, Koji Ishige, Yohei Ohya, Yuko Shirai

Tetrahedron Letters 2010 Volume 51(Issue 12) pp:1570-1573

Publication Date(Web):24 March 2010

DOI:10.1016/j.tetlet.2010.01.048

Efficient synthesis of the functional central core lactides, a constituent of antibiotic fattiviracins

Co-reporter:Eisuke Kaji, Teruaki Komori, Masaki Yokoyama, Tomomi Kato, Takashi Nishino, Tatsuya Shirahata

Tetrahedron 2010 66(23) pp: 4089-4100

Publication Date(Web):

DOI:10.1016/j.tet.2010.04.007