Atom-efficient transition-metal-free arylation of <i>N</i>,<i>O</i>-acetals using diarylzinc reagents through Zn/Zn cooperativity
作者:Andryj M. Borys、Jose M. Gil-Negrete、Eva Hevia
DOI:10.1039/d1cc04137a
日期:——
Exploiting the cooperative action of Lewis acid Zn(C6F5)2 with diarylzinc reagents, the efficient arylation of N,O-acetals to access diarylmethylamines is reported. Reactions take place under mild reaction conditions without the need for transtion-metal catalysis. Mechanistic investigations have revealed that Zn(C6F5)2 not only acts as a Lewis acid activator, but also enables the regeneration of nucleophilic
利用路易斯酸 Zn(C 6 F 5 ) 2与二芳基锌试剂的协同作用,报道了N , O -缩醛的有效芳基化以获得二芳基甲胺。反应在温和的反应条件下进行,不需要过渡金属催化。机理研究表明,Zn(C 6 F 5 ) 2不仅可以作为路易斯酸活化剂,而且可以使亲核 ZnAr 2物质再生,允许使用限制为 50 mol%。