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Synthesis and characterization of a new chiral polyurea‐based catalyst
Author(s) -
Dunjic B.,
Gamez P.,
Fache F.,
Lemaire M.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960222)59:8<1255::aid-app8>3.0.co;2-b
Subject(s) - acetophenone , catalysis , selectivity , polyurea , polymer , rhodium , chemistry , microanalysis , enantiomer , polymer chemistry , organic chemistry , urea , fourier transform infrared spectroscopy , materials science , chemical engineering , engineering , coating
A series of chiral poly(urea)s was synthesized by solution polyaddition. The polymers are characterized by NMR, FTIR, DSC, viscosimetry, and microanalysis. After deposition of the rhodium, the insoluble chiral polymers were used as catalysts in the reduction of acetophenone by hydrogen transfer. The influence of the structure of the polymers on the catalytic activity and selectivity was investigated. The enantiomeric excesses (e.e.) obtained were up to 60%, and the polymeric catalysts were reused without loss of activity and selectivity. © 1996 John Wiley & Sons, Inc.