Two grammes of o. chlor-aniline are dissolved in 30 c.c. of dry 
ether, and one gramme of antimonic acid added. After carefully 
drying for two hours at 200° C., 0-4 gramme of magnesium is added. 
The temperature rises to 45 ° C.. and is kept at this temperature for 
m| hours. After evaporation of the ether, the residue is shaken up 
ttith 25 cc. of sodium carbonate solution (5%), and the mixture is then 
warmed on a steam bath for one hour and filtered. The filtrate is 
acidified with diluted sulphuric acid, and the resulting precipitate 
dried and extracted with absolute alcohol. On evaporation of the 
alcohol. £». amino-phenyl-stibinic acid is left, which crystallizes from a 
mixture of alcohol and pyridine (i = 3 ) leaflets. The 0. amino 
phenyl-stibinic acid melts at 192® C. to 194 C., and forms an ace^ 
derivative on boiling with acetic anhydride (M.P. 167 C.-169 
treatment with potassium iodide and sulphuric acid it yields 0. io o 
aniline (M.P. 54° C.). 
(QH^O.NSbNa) 
Calculate<i 
C 25*26 per cent 
H 2 *8 o 
N 4-91 
Sb 42*11 
Na 8*o6 
Found 
25*12 per cent. 
cc 
