A synthesis of sulfonamide analogs of platensimycin employing a palladium-mediated carbonylation strategy
作者:James McNulty、Jerald J. Nair、Alfredo Capretta
DOI:10.1016/j.tetlet.2009.04.105
日期:2009.7
highly effective in palladium-catalyzed carbonylative cross-coupling. Aryl and vinyl halides were efficiently converted to carboxylic acids, amides and to primary, secondary, and tertiary esters, respectively. Application of the Pd(OAc)2/PA-Ph (1:1) catalyst system proved critical in the methoxycarbonylation of a functionalized nitroresorcinol halide, allowing convenient access to novel platensimycin
单齿配体1,3,5,7-四甲基-2,4,8-三氧杂-6-苯基-6-磷-金刚烷(PA-Ph)已显示在钯催化的羰基交叉偶联中非常有效。芳基卤化物和乙烯基卤化物分别有效地转化为羧酸,酰胺和伯,仲和叔酯。Pd(OAc)2 / PA-Ph(1:1)催化剂体系的应用在功能化的硝基间苯二酚卤化物的甲氧基羰基化中被证明是至关重要的,从而可以方便地获得新型的板新霉素磺酰胺类似物。