First example of a heterobimetallic ‘Pd–Sn’ catalyst for direct activation of alcohol: efficient allylation, benzylation and propargylation of arenes, heteroarenes, active methylenes and allyl-Si nucleophiles
作者:Debjit Das、Sanjay Pratihar、Ujjal Kanti Roy、Dipakranjan Mal、Sujit Roy
DOI:10.1039/c2ob25275a
日期:——
Arenes, heteroarenes, 1,3-dicarbonyls and organosilicon nucleophiles undergo highly efficient alkylation with allylic, propargylic and benzylic alcohols in the presence of a new ‘Pd–Sn’ bimetallic catalyst in nitromethane; water being the sole byproduct. The plausible mechanism of alkylation and the intermediacy of ether has been enumerated.
在新的“ Pd-Sn”双
金属
催化剂存在下,
芳烃,杂
芳烃,1,3-二羰基化合物和有机
硅亲核试剂与
烯丙基,炔丙基和
苄基醇进行高效烷基化
硝基甲烷;
水是唯一的副产品。列举了烷基化的合理机理和醚的
中间体。