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Pyrrolidine-HOBt: an oxytriazole catalyst for the enantioselective Michael addition of cyclohexanone to nitroolefins in water
被引:13
|作者:
Kumar, Togapur Pavan
[1
,2
]
Prasad, Sthanikam Siva
[1
,3
]
Haribabu, Kothapalli
[1
]
Kumar, Veerjala Naveen
[1
]
Reddy, Cirandur Suresh
[3
]
机构:
[1] Indian Inst Chem Technol, CSIR, Div Nat Prod Chem, Hyderabad 500007, Andhra Pradesh, India
[2] Indian Inst Chem Technol, CSIR, Acad Sci & Innovat Res AcSIR, Hyderabad 500007, Andhra Pradesh, India
[3] Sri Venkateswara Univ, Dept Chem, Tirupati 517502, Andhra Pradesh, India
关键词:
ASYMMETRIC ALDOL REACTIONS;
CONJUGATE ADDITION;
ALPHA;
ALPHA-DISUBSTITUTED ALDEHYDES;
BETA-NITROSTYRENES;
NITRO-MICHAEL;
BIFUNCTIONAL ORGANOCATALYSTS;
EFFICIENT ORGANOCATALYSTS;
RECYCLABLE ORGANOCATALYST;
CYCLIC-KETONES;
IONIC LIQUIDS;
D O I:
10.1016/j.tetasy.2016.08.006
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A new analogue of the proline derived organocatalyst 'pyrrolidine-HOBt' has been designed and synthesized from L-prolinol and hydroxybenzotriazole (HOBt) employing a simple reaction protocol. The catalyst was found to be effective in promoting the asymmetric Michael addition of cyclohexanone to nitroolefins using water as the reaction medium. The reaction products gamma-nitrocarbonyls are obtained in good yields and stereoselectivities. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:1133 / 1138
页数:6
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