Rhodium-catalyzed hydrothiolation of alkynes with thiols for construction of sulfur-containing π-conjugated systems
作者:Aya Yoshimura、Akihiro Nomoto、Akiya Ogawa
DOI:10.1007/s11164-014-1639-0
日期:2014.7
To synthesize sulfur-containing π-conjugated polymers, reaction conditions for rhodium-catalyzed hydrothiolation of terminal alkynes with arenethiols are optimized in detail. Under the optimized conditions, rhodium-catalyzed hydrothiolation of terminal alkynes proceeds regio- and stereoselectively to afford the corresponding vinyl sulfides via an anti-Markovnikov and syn-addition process. Then, the rhodium-catalyzed hydrothiolation is applied to polymerization of 2,5-diethynylthiophene with benzene-1,4-dithiol, which successfully provides sulfur-containing π-conjugated polymers with excellent regio- and stereoselectivities.
为了合成含硫π共轭聚合物,我们详细优化了铑催化末端炔烃与壬硫醇氢硫化反应的条件。在优化的条件下,铑催化的末端炔烃氢硫化反应可通过反马尔科夫尼科夫和同步加成过程进行区域和立体选择性反应,生成相应的乙烯基硫化物。然后,将铑催化的氢硫化反应应用于 2,5- 二乙炔基噻吩与苯-1,4-二硫醇的聚合反应,成功地制备出了具有优异的区域和立体选择性的含硫 π 共轭聚合物。