Optically Active Vinyl Polymers. X. Synthesis of Optically Active Poly-α-olefins from Racemic Monomers by Asymmetric Catalysts
✍ Scribed by Pino, Piero.; Ciardelli, Francesco.; Lorenzi, Gian Paolo.
- Book ID
- 125942784
- Publisher
- American Chemical Society
- Year
- 1963
- Tongue
- English
- Weight
- 402 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0002-7863
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swmnary : Optically active norbornyl and l-phenylethyl alcohols and bromides were obtained, res- pectively, from norbornyl-and l-phenylethylpentafluorosilicates which were prepared by asymmetric hydrosilylation of norbornene and styrene with trichlorosilane catalyzed by a chiral ferrocenylphosphine-
Cycloaddition of diazomethane and ethyl diazoacetate to a-(diethoxyphosphoryl)vinyl p-tolyl sulfoxide la and its P-substituted analogues (Me, Ph) results in the formation of 3-phosphorylpyrazoles in high yield. The reaction of chiral (S)-(+tla with diphenyldiazomethane proceeds fYly diastereoselecti