期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 82, 期 20, 页码 11141-11149出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.7b02142
关键词
-
资金
- National Natural Science Foundation of China [21372074, 21572053]
A highly efficient asymmetric 1,3-dipolar cycloaddition of azomethine ylides to beta,beta-disubstituted beta-fluoroacrylates catalyzed by a chiral N,O-ligand/Cu(CH3CN)(4)BF4 system is reported, affording chiral densely substituted pyrrolidines with four contiguous stereocenters, including one fluorinated quaternary stereocenter at the 3-position, in good to excellent yields (up to 99%), with excellent levels of diastereo- and enantioselectivities (dr >20:1; ee up to 99%).
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