A Convenient Preparation of Heteroaryl Sulfonamides and Sulfonyl Fluorides from Heteroaryl Thiols
作者:Stephen W. Wright、Kelly N. Hallstrom
DOI:10.1021/jo052164+
日期:2006.2.1
thiols may be oxidized to the sulfonyl chloride at low temperature (−25 °C) by using 3.3 equiv of aqueous sodium hypochlorite. The reaction is rapid, avoids the use of chlorine gas, and succeeds with substrates that have previously been found to afford little or none of the sulfonamide product with other procedures. The method allows the preparation of the sulfonylfluorides, which are stable enough to