申请人:——
公开号:US04025537A1
公开(公告)日:1977-05-24
A large group of derivatives of 3-furoic acid and 3-furyl ketones can be prepared in high yield by a process which consists of reacting an .alpha.,.beta.-unsaturated ketone having either an .alpha.-carboalkoxy or .alpha.-acyl group with N-bromosuccinimide and thermally cyclizing the resulting bromine containing intermediate.
一种方法可以制备3-呋酸和3-呋喃酮的大量衍生物,其产率高,该方法包括将具有α-羧甲酰基或α-酰基基团的α,β-不饱和酮与N-溴代琥珀酰亚胺反应,然后热环化生成含溴中间体。