Nickel(0)/NaHMDS adduct-mediated intramolecular alkylation of unactivated arenes via a homolytic aromatic substitution mechanism
作者:Louis-Philippe B. Beaulieu、Daniela Sustac Roman、Frédéric Vallée、André B. Charette
DOI:10.1039/c2cc33547f
日期:——
A variety of polycycles can be synthesized via an intramolecular alkylation cyclization promoted by Ni(PPh3)4 and NaHMDS. Mechanistic investigations support the catalytic nature of Ni0 in the course of TEMPO scavenging experiments and its association with the substrate and NaHMDS to form an adduct by DOSY NMR.
通过Ni(PPh3)4和
NaHMDS促进的分子内烷基化环化反应,可以合成多种
多环化合物。机制研究支持Ni0在
TEMPO捕获实验中的催化性质,并通过
DOSY NMR证实其与底物和
NaHMDS结合形成加合物。