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Proline-based dipeptides as efficient organocatalysts for asymmetric aldol reactions in brine
被引:21
|作者:
Tian, Hua
[2
]
Gao, Jun-long
[2
]
Xu, Hao
[2
]
Zheng, Liang-Yu
[1
]
Huang, Wen-Bo
[2
]
Liu, Qing-Wen
[2
]
Zhang, Suo-Qin
机构:
[1] Jilin Univ, Minist Educ, Key Lab Mol Enzymol & Engn, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
基金:
中国国家自然科学基金;
关键词:
HIGHLY EFFICIENT;
N-PROLYLSULFONAMIDE;
ENAMINE CATALYSIS;
WATER;
ALDEHYDES;
KETONES;
DIHYDROXYACETONE;
CYCLOHEXANONE;
DERIVATIVES;
DESIGN;
D O I:
10.1016/j.tetasy.2011.06.017
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Simple N-proline-based dipeptides with two N-H groups in combination with 2,4-dinitrophenol (DNP) catalyze the direct asymmetric aldol reactions of aldehydes with a broad range of ketones to furnish the corresponding aldol products in high yields (up to 99%) and with high enantioselectivities (up to 97%) and diastereoselectivities (up to > 99:1, anti/syn) at room temperature and in brine. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:1074 / 1080
页数:7
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