Keteneおよびその誘導体の研究(第55報)第一アミンとKetene Acetalとの反応
1973 年 93 巻 8 号 p. 1034-1042
詳細
1973 年 93 巻 8 号 p. 1034-1042
The reaction of ketene acetals (IIa-d) with primary amine (Ia-j) gave imino ether derivatives (III) in a good yield. Benzylamine (Ia) reacted with ketene acetals (IIa-c) to give amidine derivatives (IV), besides the formation of III. Reaction of p-nitroaniline (Ic) with IIa gave ethyl N-(p-nitrophenyl)acetimidate (IIIca) and ethyl N-(p-nitrophenyl)-3-ethoxycrotonimidate (VI). 4-Aminopyridine l-oxide (Ij) reacted with IIa to give ethyl N-(4-pyridyl 1-oxide)acetimidate (IIIja) and ethyl N-(4-pyridyl)acetimidate(IIIga). On treatment with dilute acid, III were hydrolyzed into amines, amidines, esters, and amides.
