Montmorillonite K 10-catalyzed regioselective addition of thiols and thiobenzoic acids onto olefins: an efficient synthesis of dithiocarboxylic esters
作者:Subbareddy Kanagasabapathy、Arumugam Sudalai、Brian C Benicewicz
DOI:10.1016/s0040-4039(01)00570-6
日期:2001.6
The addition of thiols and thiobenzoic acids onto olefins proceeded regioselectively in a Markovnikov manner in the presence of Montmorillonite K 10 (Mont K 10) clay as the catalyst to afford thioethers and thiocarboxylic S-esters, while high selectivity to anti-Markovnikov products was realized in the absence of any catalyst. Treatment of the esters with Lawesson's reagent provided the corresponding
在蒙脱石K 10(Mont K 10)粘土作为催化剂提供硫醚和硫代羧酸S酯的存在下,以马尔科夫尼科夫方式选择性地将硫醇和硫代苯甲酸加到烯烃上,同时实现了对反马尔科夫尼科夫产物的高选择性。在没有任何催化剂的情况下。用Lawesson试剂处理酯类,可以高收率得到相应的二硫代羧酸酯。