Enantioselective Catalysis, 139 [1]. A Chiral Cyclic Amidine Containing a Pyridine Substituent - Synthesis, Coordination Chemistry, Catalysis

Henri Brunner; Reinhard J. Maier; M. Zabel

doi:10.1515/znb-2001-1003

Published by De Gruyter June 2, 2014

Enantioselective Catalysis, 139 [1]. A Chiral Cyclic Amidine Containing a Pyridine Substituent - Synthesis, Coordination Chemistry, Catalysis

Henri Brunner, Reinhard J. Maier and M. Zabel

From the journal Zeitschrift für Naturforschung B

https://doi.org/10.1515/znb-2001-1003

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Reaction of the 1,3-diamine 1 with the methylester of /V,/V-dimethyl-L-phenylalanine 2 afforded the chiral cylic amidine 4 with a pyridine substituent. The CuCl₂ complex of the hydrochloride of ligand 4 has the structure of a trigonal bipyramide. In the Cu-catalyzed cyclopropanation of styrene with ethyl diazoacetate the new multi-nitrogen ligand gave optical inductions up to 15% ee.

Keywords : Amidine; Chirality; Cyclopropanation

Received: 2001-5-17

Published Online: 2014-6-2

Published in Print: 2001-10-1

Enantioselective Catalysis, 139 [1]. A Chiral Cyclic Amidine Containing a Pyridine Substituent - Synthesis, Coordination Chemistry, Catalysis

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