[4+2] cycloadditions of 1,2,4,5-tetrazines and cyclopropenes - Synthesis of 3,4-diazanorcaradienes and tetracyclic aliphatic azo compounds

Authors
Sauer, J Bauerlein, P Ebenbeck, W Gousetis, C Sichert, H Troll, T Utz, F Wallfahrer, U
Citation
J. Sauer et al., [4+2] cycloadditions of 1,2,4,5-tetrazines and cyclopropenes - Synthesis of 3,4-diazanorcaradienes and tetracyclic aliphatic azo compounds, EUR J ORG C, (14), 2001, pp. 2629-2638
Citations number
20
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
ISSN journal
1434193X → ACNP
Issue
14
Year of publication
2001
Pages
2629 - 2638
Database
ISI
SICI code
1434-193X(200107):14<2629:[CO1AC>2.0.ZU;2-S
Abstract
1,2,4,5-Tetrazines 1 readily react with cyclopropenes 2 to form 3,4-diazano rcaradienes 3, 4, 7 and 8 in a cycloaddition - cycloelimination sequence. C ompounds 3 and 4 still act as 1,3-dienes with cyclopropenes 2, producing al iphatic azo compounds 5 and 6, versatile starting compounds in thermolysis and photolysis reactions.