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Highly enantioselective copper-phosphoramidite-catalyzed conjugate addition of dialkylzinc reagents to acyclic α,β-unsaturated imides
被引:25
|作者:
Pineschi, M
[1
]
Del Moro, F
[1
]
Di Bussolo, V
[1
]
Macchia, F
[1
]
机构:
[1] Univ Pisa, Dipartimento Chim Bioorgan & Biofarm, I-56126 Pisa, Italy
关键词:
asymmetric catalysis;
C-C bond formation;
conjugate addition;
copper;
phosphoramidite ligands;
zinc;
D O I:
10.1002/adsc.200505309
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A new and practical way to introduce an alkyl fragment in the beta-position of aliphatic carboxylic acid derivatives with high enantioselectivities by the use of a commercially available chiral ligand is reported. N-Acylpyrrolidinones, as simple derivatives of an alpha,beta-unsaturated carboxylic acid, were found to be the substrates of choice featuring good reactivity and high en antioselectivities (up to > 99% ee).
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页码:301 / 304
页数:4
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