Novel synthesis of o-naphthothiophenequinone derivatives via regioselective Diels–Alder reaction
作者:Yu-Dong Shen、Hai-Qiang Wu、Sheng-Ling Zhang、Xian-Zhang Bu、Lin-Kun An、Zhi-Shu Huang、Pei-Qing Liu、Lian-Quan Gu、Yue-Ming Li、Albert S.C. Chan
DOI:10.1016/j.tet.2005.07.036
日期:2005.9
novel procedure to construct o-naphthothiophenequinones has been achieved from readily available o-benzothiophenquinones and N-dienes via Diels–Alder reaction-aromatization sequence as key steps. The absolute regioselectivity was established via Diels–Alder reaction of o-benzothiophenquinones with rich electron N-dienes.
现已通过Diels-Alder反应-芳香化序列作为关键步骤,从容易获得的邻苯并噻吩基苯醌和N-二烯类化合物中获得了一种新型的构筑邻萘噻吩基马鞭草酮的方法。绝对区域选择性是通过邻苯并噻吩基苯醌与富电子N-二烯的Diels-Alder反应确定的。