Asymmetric Cyano-Ethoxycarbonylation of Aldehydes Catalyzed by Self-Assembled Titanium Catalyst.
β Scribed by Shaohua Gou; Xiaohua Liu; Xin Zhou; Xiaoming Feng
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 38 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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## Abstract A series of Ξ²βsulfonamide alcohol ligands were synthesized from Lβphenylalanine. Titanium complexes of these compounds were used to catalyze the asymmetric addition of phenylacetylene to a number of aldehydes. When the conditions were optimized, 20β molβ % of ligand **8a** catalyzed the r