Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 87, Issue 15, Pages 10476-10484Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.2c01064
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Funding
- Natural Science Foundation of Zhejiang Province [LY20B020002]
- Jiaxing Key Laboratory for Creation of Animal Models & Synthesis of Lead Compounds of New Drug [JXSZ21003]
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A highly selective [3+2] cycloaddition reaction was achieved using a chiral catalyst, resulting in the synthesis of enantioenriched bicyclic pyrazolidinones.
A highly stereoselective [3 + 2] cycloaddition reaction of N,N'-cyclic azomethine imines with aryl acetaldehydes enabled by a chiral N-heterocyclic carbene catalyst is accomplished, giving efficient access to a plethora of enantioenriched N,N'-bicyclic pyrazolidinones featuring aromatic substituents at the C2 position. The current strategy can be directly conducted on a gram scale, and the product could be further reduced to bicyclic pyrazolidine without loss of enantiopurity.
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