作者:James L. Charlton、Tony Durst
DOI:10.1016/s0040-4039(01)81585-9
日期:——
o-tolual-dehyde via the photochemically produced 1-hydroxy-1,3-dihydrobenzo[b]thiophene-2,2-dioxide is described. Analogous syntheses of 3 and 6 substituted derivatives of the benzosultines 5 have also been carried out. The feasibility of using these benzosultines as o-quinodimethane precursors has been tested by thermalizing the phenyl sultine 5c in refluxing cyclohexane in the presence of dimethyl fumarate, dimethyl
通过光化学制备的1-羟基-1,3-二氢苯并[b]噻吩-2,从邻甲苯醛中分两步合成3,6-二氢苯并[b] -1,2-草胺-2-氧化物5a,描述了2-二氧化物。还已经进行了苯并亚砜5的3和6个取代衍生物的类似合成。通过在富马酸二甲酯,马来酸二甲酯和巴豆酸甲酯的存在下,以立体定性和高收率在富马酸二甲酯,马来酸二甲酯和巴豆酸甲酯的存在下,在回流环己烷中加热苯基磺胺5c,测试了将这些苯并磺胺类化合物用作邻喹二甲烷前体的可行性。加入马来酸酯的立体化学似乎完全是“ exo”,这与较早的关于α-芳基-o-喹啉二甲烷的Diels-Alder反应的研究相矛盾。