
TY  - JOUR
A1  - Baldas, J 
A1  - Porter, QN 
T1  - Mass Spectrometric Studies. XIV. Nitrochalcones
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1979
VL  - 32
IS  - 10
SP  - 2249
EP  - 2256
KW  - 
UR  - https://doi.org/10.1071/CH9792249 
N2  - The mass spectra of chalcone, of its 2-, 2'-, 3-, 3'- and 4-nitro derivatives, and of a number of deuterated analogues, are described. Fragmentation of the 2-nitro isomer is very simple on account of anchimeric assistance to a carbon-carbon bond fission from the nitro group. The 2'-nitro isomer shows complex fragmentation resulting from oxygen transfer to the &#945;,&#946;-double bond. The 3-, 3'-, and 4-nitro compounds fragment in ways similar to that of chalcone itself, except for losses of hydroxy groups from their molecular ions. The origins of the transferred hydrogen atoms are shown by labelling experiments, and structures are suggested for the ions formed. 
ER  -

