ASYMMETRIC EPOXIDATION OF UNFUNCTIONALIZED ALKENES USING THE NEW C2-SYMMETRICAL 1,1'-BINAPHTHYL-2,2'-DIMETHYLENE-BRIDGED ANSA-BIS(1-INDENYL)TITANIUM DICHLORIDE CATALYST

被引:45
作者
COLLETTI, SL [1 ]
HALTERMAN, RL [1 ]
机构
[1] UNIV OKLAHOMA,DEPT CHEM,620 PARRINGTON OVAL,NORMAN,OK 73019
基金
美国国家卫生研究院;
关键词
D O I
10.1016/S0040-4039(00)91845-8
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The asymmetric catalytic epoxidation of various unfunctionalized alkyl and aryl alkenes has been accomplished using the new C2-symmetrical 1,1'-binaphthyl-2,2'-dimethylene-bridged ansa-Bis(1-indenyl)titanium dichloride complex. Enantiomeric excesses of 22% and activities up to 61 turnovers were observed using the (R)(-)-BpDM-(1-ind)2TiCl2 catalyst.
引用
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页码:1005 / 1008
页数:4
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