Synthesis of 2,3-disubstituted pyrazines and quinoxalines by Heck cross-coupling reactions of 2,3-dichloropyrazine and 2,3-dichloroquinoxaline. Influence of the temperature on the product distribution
作者:Imran Malik、Munawar Hussain、Asad Ali、Serge-Mithérand Tengho Toguem、Fatima Z. Basha、Christine Fischer、Peter Langer
DOI:10.1016/j.tet.2010.01.021
日期:2010.2
Heck cross-coupling reactions of 2,3-dichloropyrazine provide a convenient approach to 2,3-dialkenyl-, 2-alkenyl-3-alkyl-, and 2,3-dialkylpyrazines depending on the reaction conditions.
根据反应条件,2,3-二氯吡嗪的Heck交叉偶联反应为2,3-二烯基-,2-烯基-3-烷基-和2,3-二烷基吡嗪提供了一种方便的方法。