
TY  - JOUR
A1  - Margetic, Davor 
A1  - Butler, Douglas N. 
A1  - Warrener, Ronald N. 
T1  - Photolysis of Fused Cyclobutatriazolines: An Adventitious Route to 3,6-Di(2-pyridyl)pyridazonorbornadiene
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2001
VL  - 53
IS  - 12
SP  - 959
EP  - 963
KW  - Aziridine; di-&#960;-methane rearrangement; ligands; photochemistry; triazoline.
UR  - https://doi.org/10.1071/CH00129 
N2  - Ultraviolet irradiation of the triazolines (18a,b) formed by the high-pressure addition of benzyl azide to dimethyl 3,6-di(2-pyridyl)-4,5-diazatetracyclo&#91;6.4.1.0 2,3 .0 9,12 &#93;trideca-3,5,7,10-tetraene-10,12-dicarboxylate (16a) and the related monoester (16b), forms 13&#8211;17% of the expected aziridine (19a,b), together with cyclobutane-cleavage products that include the hitherto unknown pyridazinonorbornadiene (2), its di-&#960;-methane rearrangement product (21) and the corresponding triazoles (20a,b). Mechanistic pathways are discussed. 
ER  -

