A catalytic enantioselective reaction using a C2-symmetric disulfonamide as a chiral ligand: Alkylation of aldehydes catalyzed by disulfonamide-Ti(O-i-Pr)4-Dialkyl zinc system
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27
摘要：
Excellent enantioselective alkylation of aldehydes with dialkylzinc has been developed. This methodology is based on the concept of modifying the Lewis acid with a C2-symmetric, electron-withdrawing disulfonamide. The chiral Lewis acid catalysts used in the present study are the titanium complex, prepared in-situ from disulfonamide and Ti(O-i-Pr)4.
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关键词：
Chiral disulfonamide chiral titanium complex enantioselective alkylation dialkyl zinc catalytic reaction
DOI：
10.1016/0040-4020(92)80020-G
被引量：
年份：
1992
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