期刊
CHEMICAL COMMUNICATIONS
卷 49, 期 16, 页码 1657-1659出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc38386e
关键词
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资金
- National Natural Science Foundation of China [20932003, 91213302, 21272102]
- Ministry of Science and Technology of China [2012ZX09504001-003]
The first organocatalytic Michael-cyclization cascade reaction between isothiocyanato oxindoles and unsaturated pyrazolones has been developed. The multicyclic spiro[oxindole/thiobutyrolactam/pyrazolone] core structures containing three contiguous stereogenic centers, including two spiro quaternary centers, were prepared with excellent diastereo- (up to >20 : 1) and enantioselectivities (up to 99% ee).
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