An Efficient Synthesis of Methyl 3-Carboxy-2-oxohexahydroazepine-1-acetate
摘要:
The title compound 1 is prepared from epsilon-caprolactam in a five-step sequence involving N-alkylation of the azepine ring from a 3-(phenylselanyl)-3-(benzyloxycarbonyl) derivative 4 and the generation of the 3-carboxyazepine moiety from the resulting diester 5 by ozonolysis followed by catalytic hydrogenation.
An Efficient Synthesis of Methyl 3-Carboxy-2-oxohexahydroazepine-1-acetate
摘要:
The title compound 1 is prepared from epsilon-caprolactam in a five-step sequence involving N-alkylation of the azepine ring from a 3-(phenylselanyl)-3-(benzyloxycarbonyl) derivative 4 and the generation of the 3-carboxyazepine moiety from the resulting diester 5 by ozonolysis followed by catalytic hydrogenation.