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A highly effective rhodium spirocyclic phosphinite catalyst for the asymmetric hydrogenation of enamides

✍ Scribed by Wenhao Hu; Ming Yan; Chak-Po Lau; S.M. Yang; Albert S.C. Chan; Yaozhong Jiang; Aiqiao Mi

Book ID
104260545
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
174 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

A rhodium complex of the phosphinite ligand spirOP was found to be an effective catalyst for the asymmetric catalytic hydrogenation of or-substituted enamides with ee values ranging from 85.1% to 97.4%.

πŸ“œ SIMILAR VOLUMES

A highly effective phosphinite ligand de
A highly effective phosphinite ligand derived from D-mannitol for Rh-catalyzed asymmetric hydrogenation
✍ Yixin Chen; Xingshu Li; Siu-kuen Tong; Michael C.K. Choi; Albert S.C. Chan πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 218 KB

A novel chiral phosphinite 1,2,5,6-di-isopropylidene-3,4-bis(diphenylphosphino)-Dmannitol was prepared and its rhodium complex was found to be an effective catalyst for the asymmetric hydrogenation of amidoacrylic acid and its derivatives with product ee's ranging from 90% to 97%.