Conjugate addition of sodium methanesulfinate to vinyl pyridines and diazines for the synthesis of aliphatic sulfones
作者:Gregory M. Schaaf、Sabuj Mukherjee、Alex G. Waterson
DOI:10.1016/j.tetlet.2009.02.037
日期:2009.4
A convenient method to introduce a sulfone group to pyridines and diazines is described. This efficient method involves the conjugate addition of sodium methanesulfinate to vinyl heterocycles. This process tolerates a wide variety of functional groups and is performed in the presence of acetic or trifluoroacetic acid. A one-pot, two-step synthesis of sulfones starting from the corresponding heteroaryl
描述了将砜基引入吡啶和二嗪的简便方法。这种有效的方法涉及将亚磺酸钠共轭加成到乙烯基杂环上。该方法可耐受多种官能团,并且在乙酸或三氟乙酸的存在下进行。还描述了从相应的杂芳基卤化物开始的一锅,两步合成砜。