Diels-Alder reaction of generated -benzoquinones with isoprenoidal dienol acetate: Novel synthesis of 2-isoprenoidal naphthalene-5, 8-quinols
作者:Archana Rani、Brijesh Kumar、Shivaji N. Suryawanshi、Dewan S. Bhakuni
DOI:10.1016/0040-4039(96)01819-9
日期:1996.10
Diels-Alder reaction of citral dienol acetate 3 with in-situ generated p-benzoquinones from 4 (a-d) furnished cycloadducts 5 (a-d) in quantitative yields. Brief exposure of 5b towards activated silica gel furnished acyl migrated product 6a in quantitative yield.
柠檬酸二烯醇酯3与原位生成的对苯甲酮的Diels-Alder反应由4(ad)生成,定量提供环加成物5(ad)。将5b短暂暴露于活化的硅胶,以定量收率得到酰基迁移产物6a。