Synthesis of olefins via a Wittig reaction mediated by triphenylarsine
作者:Lun Li、Jared C. Stimac、Laina M. Geary
DOI:10.1016/j.tetlet.2017.02.051
日期:2017.4
An arsine-mediated Wittigreaction for the synthesis of olefins is described. After heating triphenylarsine in the presence of an activated alkyl bromide for 30 minutes, the resulting arsonium salt condensed with aldehydes in as little as 5 minutes at room temperature, yielding the olefins in high yields. Aromatic, heteroaromatic, and alkyl aldehydes were all suitable substrates for this process.
Efficient Synthesis of Pyridylacrylonitriles via the Heck Reaction
作者:Kui Mei、Junbo Wang、Xianming Hu
DOI:10.1080/00397910600781356
日期:2006.8.1
A new synthetic pathway to pyridylacrylonitriles has been developed based on a palladium-catalyzed Heck reaction. The optimized process and the preparation of related functionalized pyridylacrylonitriles are discussed.