
TY  - JOUR
A1  - Blackman, GL 
A1  - Brown, RD 
A1  - Brown, RFC 
A1  - Eastwood, FW 
A1  - McMullen, GL 
A1  - Robertson, ML 
T1  - Methyleneketenes and methylenecarbenes. X. Precursors for the generation of methyleneketene and deuterated methyleneketenes for microwave spectroscopy
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1978
VL  - 31
IS  - 1
SP  - 209
EP  - 213
KW  - 
UR  - https://doi.org/10.1071/CH9780209 
N2  - The synthesis of a mixture of deuterated cyclopentadiene adducts (3) required for the pyrolytic generation of CHD=C=C=O and CD2=C=C=O is described. Methyleneketene is conveniently generated for microwave spectroscopy by flash vacuum pyrolysis of acrylic anhydride at 510- 560&#176;. Pyrolysis of diphenylmethyl propiolate gives benzophenone and methyleneketene (or its decomposition products)as the major process, but minor processes leading to diphenylmethane, fluorene and 3-phenylphthalide also occur. 
ER  -

