The invention of radical reactions. Part XXV. A convenient method for the synthesis of the acyl derivatives of N-hydroxypyridine-2-thione
作者:Derek H.R. Barton、Mohammad Samadi
DOI:10.1016/s0040-4020(01)88249-1
日期:1992.1
Treatment of the readily available di-N-oxide- of 2-thiopyridine disulfide 6 with tributylphosphine in the presence of a carboxylic acid provides a convenient and high yielding synthesis of the acyl derivatives 2 of N-hydroxy-2-thio-pyridone. Application of this procedure to the acids 17 and 18 gave, after irradiation in the presence of t-butylthiol, the desired decarboxylated derivatives in high (>90%)
容易获得的2-硫代吡啶二硫化物的二-N-氧化物的治疗6与三丁基膦在羧酸的存在提供的酰基衍生物的方便和高产合成2 N-羟基-2-硫代吡啶酮。在叔丁基硫醇存在下进行辐射后,将该方法应用于酸17和18,以高产率(> 90%)得到所需的脱羧衍生物。