作者:Scott Handy、Samantha Varello
DOI:10.1055/s-0028-1083262
日期:2009.1
couplings work well for 2,4-dibromothiophene, but are much more sensitive to steric effects in the case of 2,3-dibromothiophene. By using the recently reported potassium borates, though, good yields for both dibromothiophene isomers can be achieved. Suzuki couplings - regioselectivity - heteroaromatics - thiophenes - cross-coupling reactions - palladium catalysis
已经研究了二溴噻吩的一锅双偶合。标准的Suzuki联轴器对2,4-二溴噻吩效果很好,但对2,3-二溴噻吩的空间效应更敏感。但是,通过使用最近报道的硼酸钾,两种二溴噻吩异构体的收率都很高。 铃木偶联-区域选择性-杂芳族化合物-噻吩-交叉偶联反应-钯催化