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Asymmetric conjugate addition of organocopper-amidophosphine reagents to cycloalkenones

✍ Scribed by Motomu Kanai; Kiyoshi Tomioka

Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
322 KB
Volume
35
Category
Article
ISSN
0040-4039

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✦ Synopsis

Mediated by a noncovalently bound chiral amidophosphine iigand I, reaction of organocoppers with cycloalkenones 2 aforded the corresponding J-substituted cyclo-aLk-anones 3 in 9568% ee.

πŸ“œ SIMILAR VOLUMES

An external chiral amidophosphine ligand
An external chiral amidophosphine ligand for asymmetric conjugate addition of organocopper
✍ Yuichi Nakagawa; Motomu Kanai; Yasuo Nagaoka; Kiyoshi Tomioka πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 741 KB

Two types of external, chiral amidophosphine ligands, 1-5, were prepared. Examination of their behavior in an asymmetric conjugate addition reaction of organocuprate revealed the possibility for steric tuning to realize high selectivity.

ChemInform Abstract: Catalytic Asymmetri
ChemInform Abstract: Catalytic Asymmetric Conjugate Addition of Nitroalkanes to Cycloalkenones.
✍ Stephen Hanessian; Vinh Pham πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons βš– 30 KB πŸ‘ 1 views

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