lot Proceedings of the Ro/jal Irish Academ//. 



It was then heated in vacuo at this temperature so as to distil off phosphorus 

 compounds. The chloride was recrystallised several times from chloroform 

 and from toluene, giving a substance which melted at 63°-65°C. 



1-5189 grms. of this substance gave 0'3529 grm. of AgOl, corresponding 

 to chlorine 5'73 per cent. 



C27H55COCI requires chlorine 8-02 per cent. 



Several unsuccessful attempts were made to isolate the pure chloride. 



Montanamide, CztHj^ . CONH.. 



Mentauyl chloride was prepared as described above. The crude chloride 

 was not freed from phosphorus oxychloride, but was melted and poured 

 slowly into a large excess of strong aqueous ammonia, the mixture being kept 

 cool and well stirred. The mixture was thoroughly shaken for some time and 

 allowed to stand overnight. It was then filtered, washed with water and 

 recrystallized from hot alcohol. The resulting compound was extracted with 

 cold ether, and by this means was separated into two parts ; a small portion, 

 sgluble in cold ether, and melting at from 60° to 65*^ C. ; the remainder was re- 

 crystallised from hot alcohol and melted sharply at 109° C. The small portion 

 melting' at 60°-65°O. was probably impure montanonitrile. The part melting 

 at 109° C. was found to be montanamide. 



0'2658 grm. of the latter portion gave 8"1 c.cs. of nitrogen at 20-5° C. and 

 768 mm. pressure, corresponding to nitrogen 3'51 per cent. 



CosHstNO requires nitrogen, 3'37 per cent. 



Montanamide is a white solid which crystallises from ether in curved 

 needles. It is soluble in cold chloroform or benzene and in hot alcohol. It 

 is sparingly soluble in cold ether, petroleum ether, or acetone, but dissolves 

 readily in these solvents on warming. 



He'ptacosyl-methyl-urethane, C27H55 . JSTH . COOCH3. 



4'2 grms. (1 mol.) of montanamide were dissolved in about 200 c.cs. 

 boiling methyl alcohol, and 1'6 grms- (1 mol.) of bromine added. 0-4:7 grm. 

 (2 atoms) of sodium was dissolved in 15 c.cs. of methyl alcohol and added to 

 the solution of the amide immediately after the addition of the bromine. The 

 mixture was heated on a water-bath for about fifteen minutes ; a slight excess 

 of acetic acid was then added, and the alcohol was evaporated off. The residue 

 was thoroughly washed with cold water until free from sodium salts, and re- 

 crystallised from hot alcohol. The compound thus obtained was separated 

 into two portions by extracting with hot ligroin. The part soluble in hot 



