A novel synthesis of acyl cyanides from diethyl phosphorocyanidate and some 1-substituted imidazole carboxylic acids including a D-ribofuranoside
作者:Bhovinder S. Nagra、Gordon Shaw、David H. Robinson
DOI:10.1039/c39850000459
日期:——
tyl (or 2,3-O-isopropylidene-β-D-ribofuranosyl) imidazole-4-carboxylic acids (8b) and (8d) respectively with diethyl phosphorocyanidate and triethylamine in ethyl acetate at room temperature gave the crystalline 5-[(dimethylamino)methylene]amino-1-t-butyl (or 2,3,O-isopropylidene-β-D-ribofuranosyl) imidazole-4-carbonyl cyanides (9a) and (9b) respectively.
5-[(二甲基氨基)亚甲基]氨基-1-叔丁基(或2,3 - O-异亚丙基-β - D-呋喃呋喃糖基)咪唑-4-羧酸(8b)和(8d)分别与氰基磷酸二乙酯反应和三乙胺在室温下的乙酸乙酯溶液中,得到结晶型5-[((二甲基氨基)亚甲基]氨基-1-叔丁基(或2,3,O-异亚丙基-β - D-呋喃呋喃糖基)咪唑-4-羰基氰化物(9a)和(9b)。