It may be obtained by the oxidation of saligenin and of salicylic aldehyde; by the distillation of copper benzoate; by the decomposition of anthranilic acid with nitrous acid; by fusion of ortho-chlor or ortho-brom benzoic acid with potash; by heating orthocyanphenol with alcoholic potash; by heating a mixture of phenol, carbon tetrachloride and alcoholic potash to 100° C. (F.
It can be prepared by distilling a mixture of dry calcium benzoate and acetate, Ca(O2CC6H5)2 + (CH3CO2)2Ca = 2CaCO3 + 2 C6H5CO.CH3, or by condensing benzene with acetyl chloride in the presence of anhydrous aluminium chloride (C. Friedel and J.
An alternative method consists in converting it into ethyl benzoate by shaking with benzoyl chloride and caustic soda.
It may also be prepared by oxidizing benzyl alcohol with concentrated nitric acid; by distilling a mixture of calcium benzoate and calcium formate; by the condensation of chlor-oxalic ester with benzene in the presence of aluminium chloride, the ester of the ketonic acid formed being then hydrolysed and the resulting acid distilled: C 6 H 6 +Cl CO Cooc 2 H 5 = C,H5co COOC2H5d-HC1, C 6 H 5 CO 000H =C6H5CHO+C02; by the action of anhydrous hydrocyanic acid and hydrochloric acid on benzene, an aldime being formed as an intermediate product: C 6 H 6 +HCN+HC1= C6H5CH :NH HC1, Benzaldine hydrochloride C 6 H 5 CH: NH HC1+H 2 O =NH4C1+C6H5CHO; and by the action of chromium oxychloride on toluene dissolved in carbon bisulphide (A.
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