A Deacetylation-Diazotation-Coupling Sequence: Palladium- Catalyzed CC Bond Formation with Acetanilides as Formal Leaving Groups
作者:Bernd Schmidt、René Berger
DOI:10.1002/adsc.201200929
日期:2013.2.1
Acetanilides can be deacetylated and diazotized in situ, and subsequently used in Pd-catalyzed coupling reactions without isolation of the diazonium intermediate. Heck reactions, Suzuki cross-coupling reactions, and a Pd-catalyzed [2+2+1] cycloaddition have been investigated as terminating CC bond-forming steps of this one-flask sequence. The sequence does not require the exchange of solvents or removal
乙酰苯胺可以原位脱乙酰化和重氮化,然后在不分离重氮中间体的情况下用于Pd催化的偶联反应中。Heck反应,Suzuki交叉偶联反应和Pd催化的[2 + 2 + 1]环加成反应已作为该一瓶序列的终止CC键形成步骤进行了研究。该顺序不需要在各个步骤之间交换溶剂或除去副产物,而是在适当的时候通过添加试剂和催化剂来进行。