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Enantioselective hydrosilylation of acetophenone with rhodium / oxazolines catalysts

✍ Scribed by G. Balavoine; J.C. Clinet; I. Lellouche

Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
227 KB
Volume
30
Category
Article
ISSN
0040-4039

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✦ Synopsis

N-chelate ligands based on chiral oxazolines are efficient co-catalysts in the enantioselective hydrosilylation of acetophenone with a-naphtylphenylsilane.

Enantiomeric excess as up to 80% have been achieved.

Asymmetric synthesis by means of homogeneous catalysis with transition metal complexes associated to chiral ligands has been a subject of great topical concern during the recent yea&. As phosphines are highly

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N,N- and N,S-ligands for the enantioselective hydrosilylation of acetophenone with iridium catalysts
✍ Iyad KaramΓ©; M Lorraine Tommasino; Marc Lemaire πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 164 KB

Enantiomerically pure C 2 -symmetric diamines and dithioureas as well as a series of monothioureas have been tested as chiral inducers for hydrosilylation of acetophenone with iridium catalysts. Some new N,S-ligands have been synthesized in good yields, one of them bearing four chiral centers. Enant