Synthesis of vinyl sulfides via hydrothiolation of alkynes using Al2O3/KF under solvent-free conditions
作者:Márcio S. Silva、Renata G. Lara、Júnior M. Marczewski、Raquel G. Jacob、Eder J. Lenardão、Gelson Perin
DOI:10.1016/j.tetlet.2008.01.093
日期:2008.3
We present here a clean, solvent-free hydrothiolation of alkynes using solid supported catalyst (Al(2)O(3)/KF). This efficient and improved method selectively furnishes the corresponding anti-Markovnikov vinyl sulfides in good to excellent yields. The method is applicable for aliphatic and aromatic thiols and the catalytic system can be re-used up to two times without previous treatment and with comparable activity. (c) 2008 Elsevier Ltd. All rights reserved.