Conversion of Benzol-PJiejiol. 1 1 



In the preparation of this substance one molecule of the 

 base was heated with two molecules of acetic anhydride for 

 four hours at a temperature of 130°. 



Tfie chocolate-brown resulting mass became grayish-white 

 after a thorough washing with water and neutralization of 

 the free acetic anhydride. It was crystallized from hot 

 benzol in shining white leaflets which melted at 81°, dissolved 

 readily in warm benzol and chloroform, also in hot absolute 

 alcohol. 



The analysis gave the following result : — 



o. 1 348 gr. substance gave 0.4056 gr. carbon-dioxide and 

 0.1 1 72 gr. waier, corresponding to o. 1104 gr. C. and 

 0.01302 gr. H. 



Calculated for 

 C24H33NO. Found. 



C24 — 288 — 82.05 percent .... 81.89 percent. 



H33- iz- 940 " . . • • 9-65 



N - 14- 3.98 " .... 



0-16- 4-57 " • . • • 



351 — 100.00 per cent. 



THYMOL. 



The object of the following research was the study of the 

 action of zinc-ammonium-bromide upon some of the pTienols 

 of a more complicated chemical structure. To this end thy- 

 mol was selected as the starting-point. 



The thymol used distilled at 230°. 



The same proportions by weight of phenol, zinc-ammonium- 

 bromide and ammonium-bromide 1:3:1 were used as in 

 former experiments, the mixture was heated for forty hours, 

 and the temperature raised to 350°-36o°. The tube-contents 

 presented distinctly marked layers. The upper layer, an 

 amorphous mass of a dark-brown color, was intermingled 

 with many lighter particles of an indistinct crystalline form, 



107 



