作者:Yvan Six
DOI:10.1002/ejoc.200390170
日期:2003.3
The regioselective carboxylation of nonactivated internal alkynes can be performed with carbon dioxide under atmospheric pressure using a simple procedure based on the chemistry of Sato-type diisopropyloxytitanacyclopropenes. Various polysubstituted vinylcarboxylic acids and butenolides can be prepared in this way. In addition, this paper describes an experimental protocol for the preparation of solutions
未活化的内部炔烃的区域选择性羧化可以在大气压下使用二氧化碳进行,使用基于 Sato 型二异丙氧基钛环丙烯化学的简单程序。各种多取代的乙烯基羧酸和丁烯内酯可以通过这种方式制备。此外,本文还介绍了制备(η2-环戊烯)二异丙氧基钛溶液的实验方案。该复合物还与二氧化碳反应,并介导苯乙酮的频哪醇偶联。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)