From methyl d-glucopyranoside to methyl d-allopyranoside via the Mitsunobu reaction

Autor: Aleksander Zamojski, Mikhail Kim, Barbara Grzeszczyk
Rok vydání: 1999
Předmět:
Zdroj: Carbohydrate Research. 320:244-249
ISSN: 0008-6215
DOI: 10.1016/s0008-6215(99)00160-3
Popis: Methyl β-d-glucopyranoside reacted with a 4-molar excess of the Mitsunobu reagents (triphenylphosphine–diethyl azodicarboxylate–benzoic acid) under Weinges et al. [Carbohydr. Res., 164 (1987) 453–458] conditions to furnish four differently benzoylated methyl β-d-allopyranosides in a very good overall yield. The same reaction applied to methyl α-d-glucopyranoside yielded allosides in a low yield and nine other sugar products. These results give an insight into the course of the Mitsunobu esterification–inversion reaction.
Databáze: OpenAIRE