Chemistry of naphthazarin derivatives. Transetherification selectivity of naphthazarin methoxy derivatives
作者:N. D. Pokhilo、V. A. Denisenko、V. F. Anufriev
DOI:10.1134/s1070428014050054
日期:2014.5
Transetherification of naphthazarin methoxy derivatives in basic conditions occurs only with primary monohydric alcohols. 1,3-Butanediol due to the assistance of the hydroxy group at the C1 atom gives rise to a mixture of transetherification products at the primary and secondary hydroxy groups in a ratio 3: 1. The reaction with methyl α-D-glucopyranoside affords predominantly methyl 6-O-(5,8-dihydroxy-1