BRUNNER, H and ZETTLMEIER, W (1991) ENANTIOSELECTIVE CATALYSIS .63. OPTICALLY-ACTIVE PHOSPHINES FROM DICARBOXYLIC-ACIDS AND THEIR USE IN THE ENANTIOSELECTIVE HYDROGENATION. BULLETIN DES SOCIETES CHIMIQUES BELGES, 100 (3). pp. 259-265. ISSN 0037-9646,
Full text not available from this repository.Abstract
Two optically active bident phosphine ligands were synthesized from derivatives of succinic acid as starting materials. The optical resolution of the acids was carried out with cinchonidine and (S)-alpha-phenylethylamine. In the Rh-catalyzed enantioselective hydrogenation of alpha-acetamidocinnamic acid, the bisphosphine with a phenyl substituent in the 2-position of the four-carbon chain gave an enantiomeric excess of 17%. The enantiomeric excess was twice as high with the corresponding thienyl substituted bisphosphine.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/55061 |
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