Benzoate hydrolysis

On the basis of the general mechanism for acid catalyzed ester hydrolysis shown in Figure 20 4 write an analogous sequence of steps for the spe cific case of ethyl benzoate hydrolysis... 

Phenyl benzoates, hydrolysis of, and derivatives, catalytic action of cycloamyloses on, 23 229... 

A number of correlations involving linear relationships between pre-exponential factors and activation energy are widely quoted for reactions on surfaces, as we shall see in the next chapter. This behavior, commonly termed the compensation effect implies a linear relationship between A7/ and A5. An exact linear relationship between A77 and TAS means that there is no variation in AG for the series. An example of this for a liquid-phase reaction is given by Fairclough and Hinshelwood for ethyl benzoate hydrolysis [R.A. Fairclough and C.N. Hinshelwood, J. Chem. Soc., 1573 (1937)]. 

Androsten-3/ -ol-17-one acetate is reduced over Raney nickel to the 17jS-alcohol, which is protected as a benzoate. This allows the selective hydrolysis of the acetate with methanolic sodium hydroxide solution. A final Oppenau-er oxidation leads to testosterone benzoate, hydrolysis of which gives the target compound. 

C being the concentration of ester and Cg its solubility in the surfactant solution. As with the oxidation of aldehydes in surfactant systems [40], the rate of hydrolysis was found to be independent of the concentrations of ester and surfactant except in so far as these controlled R, The relationship between R and reaction rate holds for non-ionic surfactants but not for cationic and anionic systems for the oxidation of aldehydes [41], although it holds to some extent for propyl benzoate hydrolysis [42]. It is not surprising that ionic surfactants behave... 

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