科研之友
微信
新浪微博
Facebook
分享链接
摘要
In this article, for the first time, we describe that commercially available and environmentally benign amine-functional polysiloxanes (AFPs) could be used as highly efficient metal-free amino catalysts in multicomponent Gewald reactions, alpha-allylic alkylations of aldehydes, and Knoevenagel condensations. Using catalytic amounts of AFPs, these transformations, including the Gewald reactions of ketones, sulfur, and ethyl 2-cyanoacetate, alpha-allylic alkylations of aldehydes and Knoevenagel condensations of aldehydes and the methylene-activated substrates may be carried out under mild conditions to give corresponding products in good yields.
- 出版日期2012
- 单位杭州师范大学
