Ryan and Algar — Montanic Acid and its Derivatives. 101 



0'2074 grm. of the compound gave 0-6247 grm. of CO2 and 0'2647grm. of 

 H2O, corresponding to carbon 8214 per cent, and hydrogen 14'18 per cent. 



CsoHesO requires : carbon, 82'19 per cent. ; hydrogen, 14'15 per cent. 



Dimethyl-heptacosyl caxbinol is a white solid whicli melts at 63°-64° C, and 

 is readily soluble in cold ether or chloroform. It is soluble in cold benzene 

 or petroleum ether, somewhat soluble in cold acetone, and almost insoluble in 

 cold alcohol. It dissolves readily in hot alcohol or acetone, and crystallises 

 in small curved needles. 



Diethyl-lieptacosyl carhinol, C..7H55— C . OH. 

 CH/ 



The method employed was similar to that just described. 0'9 grm. of 

 magnesium and 6 grms. of ethyl iodide were taken, and 6'5 grms. of ethyl 

 montanate added. After the addition of the ester to the " Grignard " com- 

 pound the mix Dure was heated for several hours, and then left standing for 

 two days. The crude tertiary alcohol, which was dark yellow in colour, was 

 decolorised by boiling its alcoholic solution with animal charcoal, and was 

 freed from some unsaturated hydrocarbon, which it contained, by recrystallising 

 several times from absolute alcohol. 



The pure tertiary alcohol melts at 59°-60° 0. A yield of about 60 per 

 cent, was obtained. 



0'2015 grm. of the compound gave 0'6065 grm. of CO2, and 0-2576 grm. 

 of H2O, corresponding to carbon 82'09 per cent., and hydrogen 14-20 per 

 cent. 



CjoHeeO requii'es : carbon, 82-30 per cent. ; hydrogen, 14-25 per cent. 



Diethyl-heptacosyl carbinol is a white solid which crystallises in curved 

 needles. It is very similar to the dimethyl compound in its solubilities. 



Uiphcnyl heptacoHyl carhinol, C27H55— C . OH. 

 OcH/ 



'J'he quantities taken in this preparation were 0-7 grm. of magnesium, 

 and 4-6 grms. of bromobenzene. The " Grignard " compound formed very 

 readily, and when the reaction was complete 5-8 grms. of powdered ethyl 

 montanate were added. The preparation was then proceeded with, as in the 

 previous case. 



The yield was about 60 per cent. 



0-1949 grm. of the tertiary alcohol gave 0-609 grm. of CO2, and 0-207 

 grm. of H2O, corresponding to carbon, 85-20 per cent., and hydrogen, 11-88 

 per cent. CioHgcO requires : carbon, 85-33 per cent.; hydrogen, 11-83 per cent. 



Diphenyl-heptacosyl alcohol is a white solid which melts at 58° C, and 



