Palladium-Catalyzed Selective CH Benzylation towards Functionalized Azoles with a Quaternary Carbon Center
作者:Pan Xie、Hanmin Huang、Yinjun Xie、Shengmei Guo、Chungu Xia
DOI:10.1002/adsc.201200025
日期:2012.6.18
The direct CH benzylation of azoles with benzyl chlorides proceeds efficiently, via sequential cleavage of one sp2 CH bond and two sp3 CH bonds in the presence of a palladium catalyst, to generate a wide range of tribenzylated azoles with a quaternary carbon center efficiently. The same catalyst could also promote the mono‐ and di‐benzylation reactions through fine turning of the base and reaction
直接Ç 与苄基氯唑h的苄基化可有效地进行,经由一个的顺序裂解SP 2 ç H键和两个SP 3 Ç 在钯催化剂的存在下H键,以产生宽范围的带tribenzylated唑类的一个高效的四级碳中心。相同的催化剂还可以通过精细调节碱和反应条件来促进单苄基和二苄基化反应。