High-yielding synthesis of 1-carboxamido-3,4-dihydronaphthalenes via palladium-catalyzed aminocarbonylation
作者:Roland Farkas、Erik A. Molnár、Péter Ács、Attila Takács、László Kollár
DOI:10.1016/j.tet.2012.11.033
日期:2013.1
1-Iodo-3,4-dihydronaphthalene, an iodoalkene substrate obtained from α-tetralon, has been carbonylated in the presence of palladium–phosphine precatalysts. Systematic investigations have revealed that the 1-carboxamido-3,4-dihydronaphthalenes and 1-methoxycarbonyl-3,4-dihydronaphthalene have been formed in exceptionally high isolated yields (up to 96%) in chemospecific reaction. The influence of the
1-碘3,4-二氢萘,一种从α-四氢萘获得的碘烯烃底物,已在钯-膦预催化剂的存在下被羰基化。系统研究表明,在化学特异性反应中,以极高的分离产率(高达96%)形成了1-羧酰胺基3,4-二氢萘和1-甲氧基羰基-3,4-二氢萘。研究了胺亲核试剂和反应条件(一氧化碳压力,反应温度)对底物反应性的影响。