SQUILLACOTE, MICHAEL;SEMPLE, THOMAS C., J. AMER. CHEM. SOC., 112,(1990) N4, C. 5546-5551
作者:SQUILLACOTE, MICHAEL、SEMPLE, THOMAS C.
DOI:——
日期:——
BAIRD M. S.; JEFFERIES I., TETRAHEDRON LETT., 27,(1986) N 22, 2493-2496
作者:BAIRD M. S.、 JEFFERIES I.
DOI:——
日期:——
Labelling studies of the formation of cyclopentadienes from the reaction of 1,1-dibromo-2-vinylcyclopropanes with methyl lithium
作者:Mark S. Baird、Ian Jefferies
DOI:10.1016/s0040-4039(00)84566-9
日期:1986.1
Labelling studies of the conversion of (5, R1 = R2= Me) to (9) on reaction with methyl lithium are consistent with an intermediate (4, R1= R2 = Me) or a carbenoid with no plane of symmetry through the ring, in which selective migration of Ha (Hb and Hd in (1, R1= R2 = Me)) occurs.
与甲基锂反应时(5,R 1 = R 2 = Me)转化为(9)的标记研究与中间体(4,R 1 = R 2 = Me)或没有对称平面的类胡萝卜素一致通过环,在其中发生H a(H b和H d in(1,R 1 = R 2 = Me))的选择性迁移。