O Br Br 
iT | i 
CH,-O-P - 0C -C - Cl | 
' a 
OCH3 y Cl 
Dibrom 
9 9 ol Q cl 
CH,0-P-OH +'C-C-Br CH3-0-P-0-cHi= 
§ ff 
OCH3 H Ci OCH3 C1 
0,0-Dimethyl -2,2-dichlorovinyl 
phosphate (DDVP) 
¢) 
if 
CH3,0-P-0H 
! 
OCH3 
+ 
Oy jel 
po CH, 
H Cl 
Dichloroacetaldehyde .  * 
"i 0 fel 
CH30H + CH30~P-OH CH30-P-OCH=C + CH30H 
OH OH Cl 
| O-methy1-2,2-dichlorovinyl 
phosphate 
0 
CH30H + HO-P-OH 
OH 
86 
