Novel pentacoordinate anionic silicate,[o-C6H4 (SiPhF2) 2F]-K+. cntdot. 18-crown-6, containing a bent fluoride bridge between two silicon atoms

K Tamao, T Hayashi, Y Ito, M Shiro

Index: Tamao, Kohei; Hayashi, Takashi; Ito, Yoshihiko; Shiro, Motoo Journal of the American Chemical Society, 1990 , vol. 112, # 6 p. 2422 - 2424

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Citation Number: 68

Abstract

K"'* l8-crown-6 4 1 (a)(1) r-BuLi, 0" C to room temperature, 2 h.(2) PhSiC13, 50" C, 3 h.(3) i- PrOH, room temperature, 12 h.(4) Et3N, H20 (1 equiv)(57% yield).(b) HBF,-Et, O, CH2CI2, 0'C, 12 h (88% yield).(c) KF (1 equiv), 1 8-crownd (1 equiv), toluene, room temperature, 20 h (64% yield).