Synthesis of 3-Indazolecarboxylic Esters and Amides via Pd-Catalyzed Carbonylation of 3-Iodoindazoles
作者:Hans-Peter Buchstaller、Kai Wilkinson、Kasimir Burek、Yasmin Nisar
DOI:10.1055/s-0030-1260199
日期:2011.10
A straightforward and effective procedure for the preparation of 1H-indazole-3-carboxylic acid esters and amides was developed. A series of functionalized 3-iodoindazoles were subjected to Pd-catalyzed carbonylations in the presence of methanol or amines, yielding the title compounds in moderate to good yield. For the majority of examples, the reaction proceeded cleanly under mild conditions, which
开发了一种简单有效的制备1 H-吲哚-3-羧酸酯和酰胺的方法。在甲醇或胺的存在下,对一系列官能化的3-碘吲唑进行Pd催化的羰基化反应,以中等至良好的收率得到标题化合物。对于大多数实例,反应在温和条件下干净地进行,该条件易于被允许进一步合成转化的多种官能团所耐受。 羰基化-酯-酰胺-烷氧基羰基化-氨基羰基化-碘吲唑-钯催化