Premium
[4+2] Cycloadditions of 1,2,4,5‐Tetrazines and Cyclopropenes − Synthesis of 3,4‐Diazanorcaradienes and Tetracyclic Aliphatic Azo Compounds
Author(s) -
Sauer Jürgen,
Bäuerlein Peter,
Ebenbeck Wolfgang,
Gousetis Charalampos,
Sichert Heinz,
Troll Theodor,
Utz Ferdinand,
Wallfahrer Uwe
Publication year - 2001
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/1099-0690(200107)2001:14<2629::aid-ejoc2629>3.0.co;2-2
Subject(s) - chemistry , cycloaddition , photodissociation , thermal decomposition , combinatorial chemistry , decomposition , sequence (biology) , organic chemistry , catalysis , biochemistry
1,2,4,5‐Tetrazines 1 readily react with cyclopropenes 2 to form 3,4‐diazanorcaradienes 3 , 4 , 7 and 8 in a cycloaddition − cycloelimination sequence. Compounds 3 and 4 still act as 1,3‐dienes with cyclopropenes 2 , producing aliphatic azo compounds 5 and 6 , versatile starting compounds in thermolysis and photolysis reactions.