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Salen-derived catalysts containing secondary basic groups in the addition of diethylzinc to aldehydes
被引:84
|作者:
DiMauro, EF
[1
]
Kozlowski, MC
[1
]
机构:
[1] Univ Penn, Roy & Diana Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USA
关键词:
D O I:
10.1021/ol016535u
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
[GRAPHICS] A set of modular bifunctional salen catalysts which contain Lewis acid and Lewis base activating groups is described. These groups can be altered independently to control nucleophilic and electrophilic activation of the reacting substrates, These salen-derived catalysts show enhanced reactivity in the addition of diethylzinc to aldehydes with respect to most other salen, amino alcohol, and diamine derived catalysts and reactivity comparable to that of Ti complexes of bis-sulfonamides and diols.
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页码:3053 / 3056
页数:4
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