An unusual reaction of tetraphenylcyclopentadienyl derivatives of the group IVA elements with isopropylidenetriphenylphosphorane
作者:I.V. Borisova、Yu.N. Luzikov、N.N. Zemlyansky、Yu.A. Ustynyuk、I.P. Beletskaya
DOI:10.1016/0022-328x(84)85092-5
日期:1984.6
Reactions of the compounds of the R2R′EC29H21 type (R = Alk; R′Alk, Cl; E = Si,Ge,Sn; C29H21 = 1,2,3,4-tetraphenylcyclopentadiene-5-yl) with Ph3P=CMe2 were carried out. As was shown for Me3GeC29H21 by 13C and 31P NMR spectroscopy, the reactions proceed in the direction of demetallation (kinetic control) and deprotonation (thermodynamic control); the salts [R2E(C29H20)Cl]-[Ph3PCHMe2]+ were isolated
R 2 R'EC 29 H 21类型的化合物的反应(R = Alk; R'Alk,Cl; E = Si,Ge,Sn; C 29 H 21 = 1,2,3,4-四苯基环戊二烯-5 -Ph)与Ph 3 P = CMe 2进行。如通过13 C和31 P NMR光谱显示的Me 3 GeC 29 H 21,反应朝着脱金属(动力学控制)和去质子化(热力学控制)的方向进行;盐[R 2 E(C 29 H 20)Cl]-[Ph 3 PCHMe 2 ] + 被隔离了。