Fenoxaprop-ethyl is an herbicide used on crops like beets, cotton, potatoes, and soybeans. It is classified as a phenoxy carboxylic acid and benzoxazole type herbicide. Fenoxaprop-ethyl is synthesized by reacting propionic acid with 2-mercapto-6-chlorobenzoxazole, followed by reaction of the product with ethanolic hydrochloric acid and ethyl chloroformate.

1. 768 Pesticides Synthesis Handbook
Fenoxaprop-Ethyl
Uses: herbicide, beets, cotton, potatoes, soya beans, vegetables
Trade names: Furore. Whip. Acclaim. Puma (Hoechst)
Type: phenoxy carboxylic acid. benzoxazole
Synthes is :
C1 i.o
I I 0 I I C '~"
--c--c--c + Cl 2 ,~ --c--c --
I I "OH I ~ " OH
propionic acid +
c-- SH
c /0
2 mercapto
6 chlorobenzoxazole
+ Cl 2
I I
--c--c--OH
I I
e thano I
Cl
0
I I 11
C-'- C'---C
! I
O--C---C--
I t
4-
OH
OH
t /i~
--- --'C--- C
0
OH
hydroquinone
I I
0 "--C-- C--
I I
> c--Cl
c /0
I
o
/c-o - o-~
C1
0 O--C--- c-
fenoxaprop -ethyl I i