Synthesis of<i>Ortho</i>-alkoxy-aryl Carboxamides via Palladium-Catalyzed Aminocarbonylation
作者:Attila Takács、Artur R. Abreu、Andreia F. Peixoto、Mariette Pereira、László Kollár
DOI:10.1080/00397910802542028
日期:2009.4.7
Abstract Various aryl carboxamides with alkoxy substituents at the ortho-position, applicable as direct intermediates toward novel ligands, were synthesised via aminocarbonylation of aryl-iodides (2-iodoanisole, 5-chloro-7-iodo-8-methoxy-quinoline, and 5-chloro-7-iodo-8-benzyloxy-quinoline) in the presence of in situ generated palladium(0) catalysts. Simple primary and secondary amines as well as aminoacid
摘要 通过芳基碘化物(2-碘苯甲醚、5-氯-7-碘-8-甲氧基-喹啉和 5 -chloro-7-iodo-8-benzyloxy-quinoline) 在原位生成的钯 (0) 催化剂存在下。简单的伯胺和仲胺以及氨基酸酯用作 N-亲核试剂。反应条件的优化允许分别通过简单或双一氧化碳插入优先形成甲酰胺或酮甲酰胺。观察到化学选择性对一氧化碳压力有很强的依赖性。