Cu(ii)-catalyzed domino reaction of 2H-azirines with diazotetramic and diazotetronic acids. Synthesis of 2-substituted 2H-1,2,3-triazoles
作者:Nikolai V. Rostovskii、Mikhail S. Novikov、Alexander F. Khlebnikov、Sergei M. Korneev、Dmitry S. Yufit
DOI:10.1039/c3ob40708j
日期:——
The Cu(II)-catalyzed addition of two molecules of a 3-aryl-2H-azirine to diazotetramic or diazotetronic acids proceeds as a domino reaction with the formation of 1,2,3-triazole derivatives with ortho-fused (pyrrolo[3,4-b]pyrrol or furo[3,4-b]pyrrol) and spiro-cyclic (1-oxa-4,7-diazaspiro[4.4]nonane or 1,7-dioxa-4-azaspiro[4.4]nonane) substituents at the N2 position. The disclosed reaction is a new type of formation of a 1,2,3-triazole ring from (N–N) and (C–C–N) building blocks.
在 Cu(II)- 催化下,两分子 3-芳基-2H-氮丙啶与重氮四甲酸或重氮四壬酸的加成反应以多米诺反应的形式进行,在 N2 位形成具有正交融合(吡咯并[3,4-b]吡咯或呋喃并[3,4-b]吡咯)和螺环(1-氧杂-4,7-二氮杂螺并[4.4]壬烷或 1,7-二氧杂-4-氮杂螺[4.4]壬烷)取代基的 N2 位。所公开的反应是一种由(N-N)和(C-C-N)结构单元形成 1,2,3- 三唑环的新型反应。