Nickel(0)-Catalyzed Heck Cross-Coupling via Activation of Aryl C–OPiv Bonds
摘要:
Using a Ni(dppf) catalyst generated in situ, Heck cross-coupling of aryl pivalates with a variety of olefin partners has been accomplished. This method represents one of the first examples of a C C cross-coupling via activation of a strong C-O bond with a nonorganometallic coupling partner. It enables the transformation of phenol-based substrates into styrenyl products without generation of a halogenated byproduct or the use of expensive triflate groups.
A nitrogen and sulphur functionalized graphene oxide–palladium nanoparticle hybrid catalyst for an efficient Heck coupling
作者:Chanchal Premi、Nidhi Jain
DOI:10.1039/c6ra09996c
日期:——
A nanohybrid of Pd on GO functionalized with N and S has been fabricated, and demonstrated as an efficient catalyst for Heck coupling with a substantially low catalytic loading (0.02 mol%).