Synthesis, Herbicidal Evaluation, and Structure-Activity Relationship of Benzophenone Oxime Ether Derivatives

Table 1

Chemical structure of the target compounds 5a–5x.

Compound	R^1	R^2	Compound	R^1	R^2
5a	p-Cl	−N(CH2CH2CH3)2	5m	p-Me
5b	p-Cl	−N(CH2CH2CH2CH3)2	5n	p-Cl
5c	p-Me	−N(CH2CH2CH3)2	5o	p-Me
5d	p-Me	−N(CH2CH2CH2CH3)2	5p	p-Cl
5e	p-Me		5q	p-Br
5f	p-Cl		5r	p-Me
5g	p-Br		5s	p-Cl
5h	o-Cl		5t	p-Br
5i	p-NO2		5u	p-Cl
5j	p-Cl		5v	p-Br
5k	p-Br		5w	p-Cl
5l	p-Cl		5x	p-Br

See Scheme 2.