作者:Weili Zhao、Erick M. Carreira
DOI:10.1021/ol2019482
日期:2011.10.7
A one-pot domino synthesis of photochromic 2,2-diarylphenanthro-(9,10)-[2H]-[1,4]-oxazines in excellent yield is described starting with acrylic acid derivatives. The reaction mechanism was studied by ReactIR and UV–vis. The cascade sequence of the reactions involves five transformations, namely, acyl azide formation, Curtius rearrangement, arsonium ylide formation, aza-Wittig, and final cyclization
从丙烯酸衍生物开始,描述了以优异的收率一锅法多米诺骨牌合成光致变色的2,2-二芳基菲基- (9,10)-[ 2H ]-[1,4]-恶嗪。通过ReactIR和UV-vis研究了反应机理。反应的级联序列涉及五种转化,即酰基叠氮化物形成,Curtius重排,叶立德形成,氮杂-维蒂希和最终环化为标题化合物。