Palladium-catalysed aminocarbonylation of iodoarenes and iodoalkenes with aminophosphonate as N-nucleophile
作者:Attila Takács、Andrea Petz、László Kollár
DOI:10.1016/j.tet.2008.06.096
日期:2008.9
The high-yielding synthesis of novel N-acyl phosphonates with unprecedented structure was carried out by a homogeneous carbonylation reaction under mild reaction conditions. The palladium-catalysed aminocarbonylation of iodoalkenes (1-iodo-cyclohexene, 1-iodo-4-tert-butyl-cyclohexene, 1-iodo-2-methyl-cyclohexene and α-iodostyrene) with diethyl α-aminobenzyl-phosphonate as N-nucleophile resulted in
在温和的反应条件下,通过均相的羰基化反应进行了具有空前结构的新型N-酰基膦酸酯的高产率合成。iodoalkenes(1-碘环己烯,1-碘-4-的钯催化氨基羰基化叔丁基环己烯,1-碘-2-甲基-环己烯和α-碘苯乙烯)用二α氨基苄基-膦酸酯作为ñ -亲核试剂导致羧酰胺的排他性形成。与碘代芳香族化合物(碘代苯,2-碘代噻吩)进行的相同反应分别提供了高产率的相应羧酰胺和作为副产物的某些2-酮-羧酰胺,分别由于插入了一次和两次一氧化碳。