
TY  - JOUR
A1  - Bowie, JH 
A1  - Hayes, RN 
A1  - Sheldon, JC 
A1  - Depuy, CH 
T1  - The Rates of Gas-Phase Reactions of Solvated Anions With Acetone and Methyl Acetate. A Flowing Afterglow Study
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1986
VL  - 39
IS  - 12
SP  - 1951
EP  - 1957
KW  - 
UR  - https://doi.org/10.1071/CH9861951 
N2  - The gas-phase reactions of MeO ---- HOMe with acetone and methyl acetate to form solvated enolate anions have rates of 2.0&#215;10-9 and 4.8&#215;10-11 cm3 molecule-1 s-1. It is proposed that the latter reaction is slow because internal barriers (transition states more negative in energy than reactants) cause the reactants to be entropy- favoured. Rates of reaction decrease dramatically as the extent of solvation of the nucleophile is increased; e.g., for the reactions of MeO -( HOMe )n(n = 1- 3) with acetone, the rates for n = 1-3 are 2.0&#215;10-9, 1.5&#215;10-10 and 1.6&#215;10-12 cm3 molecule-1 s-1, respectively. 
ER  -

