Dimethyl isopropylidene malonate, the “forgotten” dienophile
作者:Christian Chapuis
DOI:10.1016/s0040-4039(00)92627-3
日期:1991.1
Despite the reported unreactivity of dimethyl isopropylidene malonate 1a as a Diels-Alder dienophile, moderate yields of cycloadducts are obtained with various dienes in refluxing CHCl3 in the presence of catalytic amounts of AlCl3.
Intramolecular cyclopentene annulation. 3. Synthesis and carbon-13 nuclear magnetic resonance spectroscopy of bicyclic cyclopentene lactones as potential perhydroazulene and/or monoterpene synthons
作者:Tomas Hudlicky、D. Bhaskar Reddy、S. V. Govindan、Thomas Kulp、Bobbi Still、Jagdish P. Sheth