作者:M. David Curtis、Robert Fink
DOI:10.1016/s0022-328x(00)83332-x
日期:1972.5
Trimethylstannyl-2,4-cycloheptadiene (II) was synthesized and shown to be fluxional on the NMR time scale. The activation energy for the [1,5] trimethyltin migration is estimated to be ca. 18 kcal/mole. This value is compared with estimated activation energies of 14 kcal/mole for trimethylstannylindene (IV) and 6 kcal/mole for cyclopentadienyltrimethylstannane (I, ESn). 1,1-Dimethyl-4-trimethylstannyl-2
合成了三甲基锡烷基-2,4-环庚二烯(II),并在NMR时标上显示出通量。估计[1,5]三甲基锡迁移的活化能约为。18大卡/摩尔。将该值与三甲基苯乙烯亚丁(IV)的估计活化能(14 kcal / mol)和环戊二烯基三甲基锡烷(I,ESn)的估计活化能(6 kcal / mol)进行比较。还合成了1,1-二甲基-4-三甲基锡烷基-2,5-环己二烯(VIII),并且显示为非氟代的。