5-(2-Thienylsulfanyl)thiophene-2-carbaldehyde: Thioacetalization, chloromethylation, and oxidation
作者:L. K. Papernaya、E. P. Levanova、L. V. Klyba、A. I. Albanov
DOI:10.1134/s1070428009070094
日期:2009.7
3-dithiane. Chloromethylation of 5-(2-thienylsulfanyl)thiophene-2-carbaldehyde with formaldehyde in a stream of hydrogen chloride in the presence of zinc chloride resulted in the formation of an oligomeric product consisting of thiophene rings connected alternately by sulfur and methylene bridges. The oligomer is formed via fast polycondensation of the primary chloromethylation product with the initial
在氯(三甲基)硅烷存在下,5-(2-噻吩基硫烷基)噻吩-2-甲醛与丙烷-1-硫醇和丙烷-1,3-二硫醇反应生成先前未知的5- [双(丙基硫烷基)甲基]- 2-(2-噻吩基硫烷基)噻吩和2- [5-(2-噻吩基硫基)噻吩-2-基] -1,3-二噻吩。在氯化锌的存在下,在氯化氢中,将5-(2-噻吩基硫烷基)噻吩-2-甲醛与甲醛进行氯甲基化,形成由噻吩环组成的低聚产物,所述噻吩环通过硫和亚甲基桥交替连接。通过伯氯甲基化产物与初始醛的快速缩聚反应形成低聚物。