共 24 条
The pH of the reaction controls the stereoselectivity of organocatalyzed direct aldol reactions in water
被引:41
作者:
Chimni, Swapandeep Singh
[1
]
Singh, Sarbjit
[1
]
Kumar, Akshay
[1
]
机构:
[1] Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India
关键词:
SMALL ORGANIC-MOLECULE;
AQUEOUS-MEDIA;
BRONSTED ACIDS;
CATALYSIS;
ENAMINE;
PROLINE;
D O I:
10.1016/j.tetasy.2009.07.014
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The direct aldol reaction of 4-nitrobenzaldehyde and cyclohexanone, catalyzed by a protonated prolinamide catalyst in water, proceeds with the formation of aldol product that has high diastereoselectivity and enantioselectivity in an optimal pH range of 4-5. (c) 2009 Elsevier Ltd. All rights reserved.
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页码:1722 / 1724
页数:3
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