
TY  - JOUR
A1  - Daly, NJ 
A1  - Gilligan, MF 
T1  - The gas-phase reaction of methyl acetate and hydrogen bromide
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1971
VL  - 24
IS  - 9
SP  - 1823
EP  - 1827
KW  - 
UR  - https://doi.org/10.1071/CH9711823 
N2  - In the gas phase methyl acetate reacts with hydrogen bromide over the range 419-497° to give methyl bromide, carbon monoxide, and methanol. Rate constants first order in both ester and hydrogen bromide are calculated from initial slopes, and are described by the equation                        k2 = 1012.29exp(-32312/RT) ml mol-1 s-1   Kinetic data depart from this second-order form at early stages of the reaction. The addition of methanol can reduce the value of k2 to zero. A mechanism involving the reversible step :                            CH3COOCH3+HBr &#8596; CH3OH+A*   is proposed. The intermediate reacts with isobutene to form mesityl oxide, and is considered identical with that formed in the reaction of acetic acid with hydrogen bromide. 
ER  -

