A Stereocontrolied Entry to Racemic Eremophilane and Valencane Sesquiterpenes<i>via</i>an Intramolecular<i>Diels</i>-<i>Alder</i>Reaction
作者:Ferdinand Näf、René Decorzant、Walter Thommen
DOI:10.1002/hlca.19820650726
日期:1982.11.3
A stereocontrolied route to racemic eremophilane and valencane sesquiterpenes is described via a commonintermediate 15, accessible from an intramolecular Diels-Alder reaction. 13C-NMR.-shift assignments of the bicyclic intermediates and products are presented.
通过共同的中间体15描述了外消旋的艾美双苯胺和缬草烯倍半萜的立体控制路线,该中间体可从分子内Diels - Alder反应获得。给出了双环中间体和产物的13 C - NMR位移分配。
Photoexcited nitroarenes for the oxidative cleavage of alkenes
The oxidativecleavage of alkenes is an integral process that converts feedstock materials into high-value synthetic intermediates1,2,3. The most viable method to achieve this in one chemical step is with ozone4,5,6,7, which however poses technical and safety challenges owing to the explosive nature of ozonolysis products8,9. Herein, we disclose an alternative approach to achieve oxidative cleavage