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Enantioselective addition of phenylacetylene to aldehydes catalyzed by polymer-supported titanium(IV) complexes of β-hydroxy amides

✍ Scribed by Xin-Ping Hui; Lu-Ning Huang; Ya-Min Li; Ren-Lin Wang; Peng-Fei Xu

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
142 KB
Volume
22
Category
Article
ISSN
0899-0042

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## Abstract A series of β‐sulfonamide alcohol ligands were synthesized from L‐phenylalanine. Titanium complexes of these compounds were used to catalyze the asymmetric addition of phenylacetylene to a number of aldehydes. When the conditions were optimized, 20 mol % of ligand **8a** catalyzed the r