Enantioselective Halocyclization Using Reagents Tailored for Chiral Anion Phase-Transfer Catalysis

被引:221
|
作者
Wang, Yi-Ming [1 ]
Wu, Jeffrey [1 ]
Hoong, Christina [1 ]
Rauniyar, Vivek [1 ]
Toste, F. Dean [1 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
基金
加拿大自然科学与工程研究理事会;
关键词
BROMOLACTONIZATION; HALOGENATION; STRATEGIES; ACID; BROMOCYCLIZATION; REARRANGEMENT; CHLOROHYDRIN; FLUORINATION; MECHANISM; TRIFLATE;
D O I
10.1021/ja305795x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A chiral anion phase-transfer system for enantioselective halogenation is described. Highly insoluble, ionic reagents were developed as electrophilic bromine and iodine sources, and application of this system to o-anilidostyrenes afforded halogenated 4H-3,1-benzoxazines with excellent yield and enantioselectivity.
引用
收藏
页码:12928 / 12931
页数:4
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