Environmental Engineering Reference
In-Depth Information
Cl
Cl
Cl
Cl
Cl
C O
CH
CN
C O
CH
CN
O
Cl
O
C O
CH
CN
O
O
O
O
(1R,cis, αRS)
-
Cypermethrin(P1)
(1R,trans, αRS)
-
Cypermethrin(P1)
Cl
Cl
Cl
Cl
Cl
Cl
C O
CH
CN
O
C
C O CH
CN
O
C
O CH
CONH
2
O
O
O
(cis,trans)-
O
Cl
Cl
Cl
Cl
Cl
Cl
C O CH
CN
OH
C O CH
CONH
2
OH
C O CH
CONH
2
O
CN
O
O
CH
CN
2
CH
2
O
O
O
Cleavage of ester linkage
CONH
2
Polar Products
O
CH
2
CH
OH
CH
OH
CONH
2
Cl
Cl
COOH
O
O
CN
COOH
O
CH
2
HCN
CH
OH
COOH
CO
2
O
CHO
O
Cl
COOH
COOH
Cl
HOOC
OH
Cl
Cl
O
COOH
O
COOH
H
O
Cl
O
OH
O
O
HO
COOH
O
COOH
CO
2
CO
2
OH
OH
O
O
O
O
O
O
2
R
R
R
Resmethrin
OH
O
O
=
R
O
HO
O
O
O
O
R
R
O
R
Esfenvalerate
, a pyrethroid insecticide, undergoes photo-induced decarboxylation and
ester cleavage in water under natural sunlight as
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