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Polystyrene‐supported Palladium(II) Ethylenediamine Complex: A Recyclable Catalyst for the Syntheses of 2‐Benzyl‐imidazo[2,1‐ b ][1,3]benzothiazoles by Sonogashira Reaction
Author(s) -
BAKHERAD Mohammad,
BAHRAMIAN Bahram,
NASRISFAHANI Hossein,
KEIVANLOO Ali,
SANG Golnaz
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990057
Subject(s) - chemistry , sonogashira coupling , ethylenediamine , catalysis , iodide , palladium , polystyrene , bromide , polymer chemistry , combinatorial chemistry , organic chemistry , medicinal chemistry , polymer
Abstract The polymer‐supported palladium(II) ethylenediamine complex was used as a catalyst for the heterocyclization during Sonogashira reaction between a substituted phenyl iodide and 2‐amino‐3‐(2‐propynyl)‐1,3‐benzothiazolium bromide, which could readily be recovered from the reaction medium by a simple filtration, and reused without a significant loss in its activity.