Synthesis of a cyclometalated 1,3,5-triphenylpyrazole palladium dimer and its activity towards cross coupling reactions.

Dalton Trans

School of Chemical Sciences, National Institute of Science Education and Research (NISER), Institute of Physics Campus, Bhubaneswar-751005, Orissa, India.

Published: March 2015

A phosphine free 1,3,5-triphenylpyrazole acetate-bridged palladacycle was prepared from simple commercially available starting materials. The activity of the palladacycle in the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions was evaluated. The palladacycle precatalyst shows a wide substrate scope, both in Mizoroki-Heck as well as in Suzuki-Miyaura cross-coupling reactions using low catalyst loadings viz., 0.2 mol% and 0.1 mol% respectively.

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http://dx.doi.org/10.1039/c4dt03908dDOI Listing

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