Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Pyrimidine derivatives, herbicides and plant growth regulators
 Novel pyrimidine derivatives of the formula (I): ##STR1## wherein R1 is a C.sub.1 -C.sub.6 haloalkyl group, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, R2 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, and X is a carbonyl group or --C(R3)OH (wherein R3 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or the like). 
Nissan Chemical Industries, Ltd.
A C
A01N C07D
inventional inventional
Yoshihiro Yoichi Takumi Kimihiro Jun Kazuhisa Yasuo Tsutomu Kunimitsu Shigeomi
Kudo Ito Mikashima Ishikawa Satow Sudo Kondo Nawamaki Nakahira Watanabe