A New Synthesis of (<i>E</i>)-4-Alkoxy-2-formylamino-3-butenoic Acid Derivatives Utilizing 3-Alkoxy-1-isocyano-1-lithiopropenes
作者:Kazuhiro Kobayashi、Hideki Akamatsu、Susumu Irisawa、Masaki Takahashi、Osamu Morikawa、Hisatoshi Konishi
DOI:10.1246/cl.1997.503
日期:1997.6
The title amino acid derivatives have been prepared in two steps from 3-alkoxy-1-isocyanopropenes. The key step is the alkoxycarbonylation of 3-alkoxy-1-isocyano-1-lithiopropenes with alkyl chloroformates to afford the corresponding 4-alkoxy-2-isocyano-3-butenoates, which are readily converted to the title compounds by acidic hydrolysis.
标题
氨基酸衍
生物是通过两个步骤从3-烷氧基-1-异
氰基
丙烯制备的。关键步骤是将3-烷氧基-1-异
氰基-1-
锂丙烯进行烷氧基羧基化,使用烷基
氯甲酸酯,以获得相应的4-烷氧基-2-异
氰基-3-
丁烯酸酯,这些化合物可通过酸性
水解轻松转化为标题化合物。