
TY  - JOUR
A1  - Anderson, MR 
A1  - Brown, RFC 
A1  - Browne, NR 
A1  - Eastwood, FW 
A1  - Fallon, GD 
A1  - Gan, DPC 
A1  - Pullin, ADE 
A1  - Staffa, AC 
T1  - The Pyrolysis of Butatrienone Precursors: 3,4-Diazatricyclo[5.2.1.0<sup>2,6</sup>]deca-3,8-diene-<I>endo-cis</I>-2,6-dicarboxylic anhydride and Its 5,5-Diphenyl Derivative
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1990
VL  - 43
IS  - 3
SP  - 549
EP  - 560
KW  - 
UR  - https://doi.org/10.1071/CH9900549 
N2  - Flash vacuum pyrolysis of the title anhydride (4) gave a poor yield of butatrienone , detected by argon matrix isolation infrared spectroscopy. Similar pyrolysis of the 5,5-diphenyl derivative (8) failed to give diphenylbutatrienone ; the red product (16) is considered to have been formed by dimerization of an intermediate 2H-indenylidenemethanone (15). The crystal structure of (16) has been determined. 
ER  -

