Methyl N-phenylacrylimidate (1a) reacted with alkyl- and aryl-magnesium bromides in ether at 0 °C to give 2-alkyl 1,3-diketones (3a) in a good yield after aqueous work-up; methyl N-phenylcrotonimidate (1b) and N-phenylcinnamimidate (1c) with alkylmagnesium bromides furnished analogous 1,3-diketones (3) as the major products after hydrolysis of the corresponding stable diimines (2).
N-苯基
丙烯酰亚胺亚甲基(1a)与烷基
溴和芳基
溴化镁在
乙醚中于0°C反应,经过
水处理后,以良好的收率得到2-烷基1,3-二酮(3a)。甲基Ñ -phenylcrotonimidate(1B)和Ñ -phenylcinnamimidate(1C)与烷基
镁溴化物布置类似的1,3-二
酮类(3)与相应的稳定二
亚胺(
水解后的主要产物2)。