556 
Mr Hodgson , Some Reactions, etc . 
‘0975 grms. gave on combustion ‘0485 H 2 0 and ’1915 C0 2 . 
H = 5-517, 
C = 53-53. 
CH . CN . COOC 2 H 5 
requires H — 5‘357 °/ 0 > C = 53 57 °/ Q . 
CH . CN . COOC 2 H 5 
"2755 grms. gave 28"6 c.c. of moist N at 15"25° C. and 
760 - 2 mm. pressure. 
N - 12-15°/ . 
CH . CN . COOC 2 H 5 
I requires 12-5 °/ N. 
CH . CN . COOC 2 H 5 
The action of iodine on sodium cyanacetic ester is thus perfectly 
analogous to that of phenyliodide chloride on the same ester. 
Action of iodo so -benzene acetate on sodium cyanacetic ester. 
The action of iodoso-benzene acetate was tried and gave the 
same results as the two preceding reactions. 
The experiment was performed in precisely the same way, the 
quantities used being as follows : — 
10 grms. of cyanacetic ester, 
2'03 „ „ sodium wire, 
14"25 „ „ iodoso-benzene acetate. 
A light brown oil was obtained, and after re- distillation in vacuo 
a combustion resulted as follows : 
"125 grms. gave "244 CO., and "063 H o 0. C = 532 °/ o , 
H = 5-59 %. 
CH . CN . COOCoH 5 H = 5 357 %. 
requires 
CH . CN . COOC 2 H 5 C = 53-57 %. 
Thus all three preceding reactions give the same final product. 
The action of diphenyliodonium iodide on monosodium malonic 
ester, both at ordinary temperatures and also at the temperature of 
the boiling water-bath for several days, was tried, but nothing 
appeared to take place. Probably a much higher temperature 
may be required to effect a reaction, and the author hopes to try 
experiments using sealed tubes at some future date. Under the 
conditions employed in the foregoing experiments the author 
concludes phenyliodide chloride and iodoso-benzene acetate have 
analogous properties to iodine itself, when acting on the sodium 
compounds of malonic and cyanacetic esters. 
Finally, the author desires to express his gratitude to Mr H. O. 
Jones for the extremely kind interest he has taken in this work, and 
for much help and advice during the progress of the experiments. 
