Alkyl and aryl phosphates decomposed slowly under the influence 
of heat. The reaction was catalyzed by UV and acid (193). 
0 0 
R-CH, CH ,0-B-oR —PR-CH=CH, + HO-P-OR 
1 } 
OR OR 
Orthophosphate esters underwent a different reaction (520). 
Q 2 = } 0 J 
RO-E-OR +  RO-P-0 + RO-P-o-B-on + (OR) 
' tf 
OR OR OR OR 
During alkaline hydrolysis of bidrin, the crotonamide moiety 
separated from the phosphate. This was followed by decomposition of 
the crotonamide to acetone, CO, and di-or-mono-methylamine. 
The dimethyl phosphate ion was stable under alkaline conditions 
and was not further hydrolyzed. 
{ Q Q 
(CH.0) Phe cornet helece ) » —B> (CH,0) ,-P-ONa ——-S» CH.,-C-CH -¢_N-(CH ) 
a oY 
(CH) 9 ~C=0+CO 9 tNH- (Ci 

60 
ldo 


