Pd-Catalyzed C-S Cyclization via C-H Functionalization Strategy: Access to Sulfur-containing Benzoheterocyclics
作者:Shihao Chen、Ming Wang、Xuefeng Jiang
DOI:10.1002/cjoc.201800242
日期:2018.10
A C—H sulfurated cyclization protocol starting from thioacetates is developed for straightforward construction of sulfur‐containing benzoheterocyclics. The diversiform functional dihydrobenzothiophenes and thiochromans were comprehensively achieved through the Pd‐catalyzed carbon‐ sulfur cyclization. Mechanistic studies indicated that C—H bond cleavage was involved in the rate‐determining step. [1]Benzothieno‐[3
从硫代乙酸盐开始的AC-H硫化环化方案是为直接构建含硫的苯并杂环化合物而开发的。通过Pd催化的碳硫环化,可以全面实现多种形式的二氢苯并噻吩和噻喃类化合物。机理研究表明,CH键断裂参与了速率确定步骤。[1]苯并噻吩并[3,2-b]-[1]苯并噻吩(BTBT)和苯并[b]噻吩并[2,3-d]噻吩(BTT)被有效地建立为著名的有机场效应晶体管(OFET)材料分子通过这种方法。