4.4 Article

Pd-N-heterocyclic carbene (NHC) organic silica:: synthesis and application in carbon-carbon coupling reactions

Journal

TETRAHEDRON
Volume 64, Issue 20, Pages 4637-4643

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2008.02.098

Keywords

organic silica; heterogeneous catalysis; Pd-NHC; Suzuki reaction; Heck reaction; microwave irradiation

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The first Pd-N-heterocyclic carbene (NHC) complex in the form of organic silica was prepared using sol-gel method and its application in Heck and Suzuki reactions was demonstrated. These C-C coupling reactions proceeded efficiently under the influence of microwave irradiation, with excellent yield, without any change in catalytic activity for at least five reaction cycles, with negligible Pd concentration in the end product. (C) 2008 Elsevier Ltd. All rights reserved.

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