40 



The Philippine Journal of Science 



1913 



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Fig. 2. — Full curve = o-cresol in alcohol. 



Dot curve = o-cresol with 1 equivalent of sodium ethoxide. 

 Dash curve = o-cresol with 5 equivalents of sodium ethoxide. 

 Dash and dot curve = o-cresol in aqueous solution with 5 

 equivalents of sodium hydroxide. 



The curves for o-cresol in alcohol and in the presence of alkali 

 as shown by Hantzsch 14 cannot be correctly attributed to this 

 compound. It is probable that acetoacetic ether was photo- 

 graphed instead of o-cresol, since the curves correspond with 

 his data for the former compound. We have photographed 

 o-cresol in alcohol solution and in the presence of 1 and 5 

 equivalents of sodium ethoxide, and in water solution in the 

 presence of 5 equivalents of alkali. It is to be noted that an 

 absorption band in the benzene region makes its appearance in 

 the presence of alkali, a fact not noted by previous investigators. 

 This band corresponds to that observed with phenol in the 

 presence of alkalies, but appears at slightly greater concentra- 

 tions. 



Ber. d. deutschen ckem. Ges. (1910), 43, 3071. 



