Iron(III) Chloride‐Catalyzed Direct Sulfonylation of Alcohols with Sodium Arenesulfinates
作者:M. Amarnath Reddy、P. Surendra Reddy、B. Sreedhar
DOI:10.1002/adsc.200900905
日期:2010.10.9
A new protocol for the direct sulfonylation of benzylic, allylic and homoallylic alcohols with sodium arenesulfinates is described by using iron(III) chloride as a catalyst and chlorotrimethylsilane as an additive. This method requires no preactivation of alcohols. Surprisingly in the reaction with homoallyl alcohols nucleophilic addition of sulfinate anion, occurs at the terminal double bond instead
通过使用氯化铁(III)作为催化剂和氯三甲基硅烷作为添加剂,描述了一种新的方案,用于将苄基,烯丙基和均烯丙基醇与芳烃亚磺酸钠直接磺酰化。该方法不需要酒精的预活化。令人惊讶地,在与均烯丙基醇的反应中,亚磺酸根阴离子的亲核加成发生在末端双键处,而不是在醇上进行亲核取代。