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Indexed by:期刊论文

Date of Publication:2010-08-01

Journal:CHINESE CHEMICAL LETTERS

Included Journals:SCIE、ISTIC、CSCD

Volume:21

Issue:8

Page Number:979-982

ISSN No.:1001-8417

Key Words:Microcapsule-supported palladium catalyst; SPG emulsification technique; Heck reaction

Abstract:A new method for the preparation of microcapsule-supported palladium catalyst was described. The highly monodisperse crosslinked polystyrene microcapsules containing phosphine ligand were synthesized by the self-assembling of phase separated polymer (SaPSeP) method using diphenyl(4-vinylphenyl)phosphine and divinylbenzene as a monomer and crosslinking agent, respectively, and 2,2'-azobisisobutyronitrile (AIBN) as an initiator within the droplets of oil-in-water (O/W) emulsions, which were prepared by using the Shirasu Porous Glass (SPG) membrane emulsification technique. The prepared microcapsule-supported palladium catalyst exhibited high catalytic activity for Heck reaction and can be reused several times without loss of activity. (C) 2010 Xiu Juan Feng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.