A mild and highly convenient chemoselective alkylation of thiols using Cs2CO3–TBAI
作者:Ralph Nicholas Salvatore、Robert A. Smith、Adam K. Nischwitz、Terrence Gavin
DOI:10.1016/j.tetlet.2005.10.062
日期:2005.12
A mild and improved method for the synthesis of thioethers has been developed. In the presence of cesium carbonate, tetrabutylammonium iodide, and DMF, various alkyl and aryl thiols underwent S-alkylation to afford structurally diverse sulfides in high yield. Unprotected mercaptoalcohols and thioamines reacted chemoselectively at the sulfur moiety exclusively. An example of a one-pot, solid-phase synthesis of a thioether is also described. (c) 2005 Elsevier Ltd. All rights reserved.