
TY  - JOUR
A1  - Hamon, DPG 
T1  - The synthesis and rearrangements of Hexamethylbicyclo[1,1,0]butane
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1974
VL  - 27
IS  - 1
SP  - 153
EP  - 161
KW  - 
UR  - https://doi.org/10.1071/CH9740153 
N2  - The synthesis of the title compound (1) by an intramolecular Wurtz reaction is reported. Acid-catalysed rearrangements of (1) gave isomeric products shown to be 2,3,4,5-tetramethylhexa- 1,4-diene (ll), 2,3,4,5-tetramethylhexa-2,4-diene (12) and 1-isopropenyl-1,2,2,3-tetramethylcyclopropane (13). Pyrolytic rearrangements in the vapour phase in the presence of triethylamine gave both (11) and (12). The production of (11) is most reasonably explained in terms of an initial non-concerted cleavage of the bicyclobutane to give a diradical species. 
ER  -

