Reactions of tris(2-pyridyl)phosphine oxides with electrophiles: Formation of 5-substituted 2,2?-bipyridyls
作者:Yuzuru Uchida、Masami Matsumoto、Haruyasu Kawamura
DOI:10.1002/hc.10085
日期:——
The reaction of tris(2-pyridyl)phosphine oxides with benzeneselenenyl chloride in methanol gave the corresponding 5-phenylseleno-2,2′-bipyridyls together with a small amount of 2,2′-bipyridyls. Similarly, the reaction with arenesulfenyl chlorides in aqueous acetonitrile afforded two kinds of coupling products, 5-phenylthio-2,2′-bipyridyls and 2,2′-bipyridyls. While in the reaction with arenesulfinyl
三(2-吡啶基)氧化膦与苯硒基氯在甲醇中的反应得到相应的 5-苯基硒基-2,2'-联吡啶和少量的 2,2'-联吡啶。类似地,在乙腈水溶液中与芳烃亚磺酰氯反应得到两种偶联产物,5-苯硫基-2,2'-联吡啶和2,2'-联吡啶。而在乙腈水溶液中与芳烃亚磺酰氯反应时,四种相应的联吡啶衍生物、2,2'-联吡啶、5-芳硫基-2,2'-联吡啶、5-芳基亚磺酰基-2,2'-联吡啶和 5-芳基磺酰基-形成了 2,2'-联吡啶。© 2003 Wiley Periodicals, Inc. 杂原子化学 14:72–81, 2003; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.10085