Patent ID: 8735598

Claim:
A method for producing a compound having the following formula (5): (wherein R 1 represents a hydrogen atom or a C 1 -C 4 alkyl group, and R a represents a hydrogen atom or a C 1 -C 4 alkyl group) by oxidizing a compound having the following formula (1): (wherein R a represents a hydrogen atom or a C 1 -C 4 alkyl group) using an oxidizing agent in the presence of a radical initiation reagent, and then reacting the resulting compound with an ammonia-generating reagent and a compound having the formula R 1 CHO (wherein R 1 represents a hydrogen atom or a C 1 -C 4 alkyl group) or a compound having the formula R 1 C(OR b ) 3 (wherein R 1 represents a hydrogen atom or a C 1 -C 4 alkyl group, and R b represents a C 1 -C 6 alkyl group).