74697-30-6Relevant academic research and scientific papers
An one-pot synthesis of semibullvalenes and its mechanism
Sauer, Juergen,Baeuerlein, Peter,Ebenbeck, Wolfgang,Schuster, Johann,Sellner, Ingeborg,Sichert, Heinz,Stimmelmayr, Horst
, p. 791 - 801 (2007/10/03)
1,2,4,5-Tetrazines 7 readily react with 3,3′-bicyclopropenyl 8 in a cycloaddition-cycloelimination sequence to give 3,4-diazanorcaradienes 9 with endo configuration of the methyl group at C-7. On gentle heating in inert solvents, these 3,4diazanorcaradienes 9 are cleanly transformed into semibullvalenes 11. This reaction sequence can also be performed as a one-pot method. Kinetic investigations and comparisons with two model systems are in agreement with the proposed reaction mechanism.
ZUM MECHANISMUS DER SEMIBULLVALEN-BILDUNG AUS 1,2,4,5-TETRAZINEN UND BIFUNKTIONELLEN CYCLOPROPENEN
Schuster, H.,Sichert, H.,Sauer, J.
, p. 1485 - 1488 (2007/10/02)
A mechanism is proposed for the multi-step reaction of 1,2,4,5-tetrazines 1 and the bifunctional cyclopropene 2a to form substituted semibullvalenes 8.
