作者:Dong Wang、Hailing Jia、Wuchang Wang、Zhe Wang
DOI:10.1016/j.tetlet.2014.11.005
日期:2014.12
selectively chlorinated at C2 in moderate to excellent yields, employing Vilsmeier reagent as both the activating agent and the nucleophilic chloride source. Remarkable features of the method include simple operation, mild reaction conditions, a wide substrate scope, and the use of only stoichiometric amount of POCl3. The potential extension of this method to a one-pot oxidation/chlorination sequence
使用Vilsmeier试剂同时作为活化剂和亲核氯化物源,在C2选择性地将熔融的N-氧化的嗪N进行选择性氯化。该方法的显着特征包括操作简单,反应条件温和,底物范围宽以及仅使用化学计量的POCl3 。该方法的潜在扩展范围是一锅法氧化/氯化序列,无需分离所述的ñ氧化物中间体也被验证。