作者:Vladimir P. Zaytsev、Dmitriy F. Mertsalov、Maryana A. Nadirova、Pavel V. Dorovatovskii、Victor N. Khrustalev、Elena A. Sorokina、Fedor I. Zubkov、Aleksey V. Varlamov
DOI:10.1007/s10593-018-2194-1
日期:2017.11
[3+2] Cycloaddition of o-nitrophenyl azide to the multiple bond of oxabicyclo[2.2.1]heptene moiety in substituted 3a,6-epoxyisoindoles was performed. The 1,3-dipolar addition reaction proceeded stereoselectively, producing a pair of isomeric cis-4,8a-epoxy[1,2,3]triazolo[4,5-e]isoindoles. This approach demonstrated synthetic access to isomeric epoxy-1,2,3-benzotriazoles fused with a γ-butyrolactam
在取代的3a,6-环氧异吲哚中,将邻硝基苯基叠氮化物[3 + 2]环加成到氧杂双环[2.2.1]庚烯部分的多重键上。1,3-偶极加成反应立体选择性地进行,产生一对异构的顺式-4,8a-环氧[1,2,3]三唑并[4,5- e ]异吲哚。该方法证明了合成方法可合成与γ-丁内酰胺部分稠合的环氧-1,2,3-苯并三唑异构体。