— i5i — 



water-bath temperature into an acid, C u H 12 6 , m. p. 155,5°, of which 

 the formula is clearly as follows: — 



CH 

 H 3 CO.c/\c.OCH 3 



HCsx 'C-CO-COOH 

 C-OCHg 



This acid, upon being melted, gave off carbonic acid and carbon 

 monoxide. When submitted to dry distillation it yielded a residue melting 

 at 49 to 50 , insoluble in sodium carbonate solution, which gave a 

 blue colour with fuming nitric acid. Of this acid a quite considerable 

 proportion could be obtained (36 g. from 43 g. ether) and it was 

 easily purified by recrystallisation from hot water. It contained no 

 water of crystallisation. 



Combustion: — 



1. 0,1682 g. subst: 0,3390 g. C0 2 , 0,0867 g. H 2 0. 



2. 0,1471 g. „ 0,2956 g. C0 2 , 0,0721 g. H 2 0. 



3. 0,1574 g. „ 0,3169 g. C0 2 . — 



11 ^-12 6 : 







Found : 





Calculated for C 





1 



11 



in 





c 



54,96% 



54,79% 



54,9! % 



55,o% 



H 



5,73 % 



5,37% 



— 



5,o% 



The silver salt, recrystallised from water, formed colourless needles, 

 which, however, quickly turned yellow when exposed to light. 



0,1993 g. subst.: 0,0618 g. Ag. 



Found : Calculated for C lt H n 6 Ag : 



Ag 31,01% 31,12% 



As a ketonic acid, this acid when treated with sodium carbonate 

 and hydroxy lamine according to Bamberger's directions, yielded 

 an oxime, m. p. 88,5 to 93 . A nitrogen determination of the body 

 gave the following result: — 



0,1444 g- subst: 7,2 cc. N (20 , 756 mm.). 



Found : Calculated for C u H 13 6 N : 



5,67% 5,49% 



The oxime was sparingly soluble in water and ether, but dissolved 

 very readily in benzene. 





