制备和转位 de Wolffvinylogue de 21 α'-diazocetones β,γ insaturees acycliques et monocycliques。形成 d'esters γ,δ-insatures。La transposition est catalysee par CuSO 4 , Cu(AcAc) 2 ou Cu(OTf) 2 en存在de divers alcools;机制
Generally applicable synthesises which lead to d, l-iridomyrmecin and related bicyclic γ and δ-lactones are reported.
据报道,普遍适用的合成方法可导致d,1- iridomyrmecin以及相关的双环γ和δ-内酯。
The kinetics of acid-catalysed equilibrations of endo- and exo-cyclic olefins
作者:D. B. Bigley、R. W. May
DOI:10.1039/j29700001761
日期:——
The equilibrium constants for the acid-catalysed isomerisation of isopropylidenecycloalkanes to isopropylcycloalkenes have been measured as a function of temperature for the five- to eight-membered rings. The rates of equilibration have been measured, starting from each pure isomer. Together these data permit the construction of approximate energy diagrams for the processes. The results are compared