An environmentally friendly and novel protocol has been developed for the synthesis of 7a-phenyl-1a,7a-phenyl-benzopyrano[2,3-b]azirin-7-ones in moderate to high yieldsviathe photoisomerization of 4-phenyl-5-(2-hydroxyphenyl)isoxazoles.
已经开发出一种环保且新颖的协议,用于合成7a-苯基-1a,7a-苯基苯并吡喃[2,3-b]氮杂环-7-酮,通过4-苯基-5-(2-羟基苯基)异恶唑的光异构化,以中等到高收率获得。