Generation of ortho-quinone methides upon thermal extrusion of sulfur dioxide from benzosultones
作者:Krzysztof Wojciechowski、Karolina Dolatowska
DOI:10.1016/j.tet.2005.06.087
日期:2005.8
3H-1,2-Benzoxathiole 2,2-dioxides (benzosultones) undergo thermal extrusion of sulfur dioxide to form ortho-quinone methides that enter Diels–Alder reaction with maleimides to form chroman 2,3-dicarboxylic acid derivatives.
3 H -1,2-苯恶硫醇2,2-二氧化物(苯甲砜)经历二氧化硫的热挤压,形成邻苯醌甲基化物,后者与马来酰亚胺进入Diels-Alder反应,形成苯并二氢吡喃2,3-二羧酸衍生物。