已经开发出铜催化的用于将乙苯脱氢成苯乙烯衍生物的反应方案。该反应过程在温和的反应条件下进行得很好,为生物学和药学上重要的分子(如乙烯基砜)的快速组装提供了实用而有效的策略。在存在N-磺酰基苯并[ d ]咪唑的情况下,通过连续的β-消除作用将简单的烷基芳烃官能化,具有广泛的底物范围和良好的官能团耐受性。
Palladium-catalyzed coupling of vinyl tosylates with arylsulfinate salts
作者:Diana C. Reeves、Sonia Rodriguez、Heewon Lee、Nizar Haddad、Dhileep Krishnamurthy、Chris H. Senanayake
DOI:10.1016/j.tetlet.2009.03.174
日期:2009.6
The first palladium-catalyzedcoupling of vinyl tosylates with arylsulfinate salts is described. A variety of cyclic and acyclic vinyl tosylates were coupled with aryl sulfinate salts using 2.5 mol % Pd2(dba)3/5.0 mol % XantPhos to give vinyl aryl sulfone products in good yields. The coupling was extended to the preparation of a cyclopropyl vinyl sulfone.