期刊
CHEMICAL COMMUNICATIONS
卷 57, 期 38, 页码 4690-4693出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc00989c
关键词
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资金
- National Natural Science Foundation of China [22078298, 21978271, 21706234, 21676253]
- Natural Science Foundation of Zhejiang Province of China [LY19B060011, LQ21B020006]
This study demonstrates an enantioselective synthesis of highly functionalized compounds using a chiral phosphine-mediated alkylation/annulation sequence, resulting in good chemical yields and excellent enantioselectivity.
An enantioselective synthesis of highly functionalized 1,4-dihydropyrazolo[4 ',3 ':5,6]pyrano[2,3-b]quinolines from modified MBH carbonates and pyrazolones via a chiral phosphine-mediated alkylation/annulation sequence has been realized. The chiral dihydropyrano[2,3-c]pyrazoles bearing bio-active condensed heterocycles were facilely formed in good chemical yields and with high to excellent enantioselectivity by utilizing low catalyst loading.
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