Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1990-08-09
1991-10-01
Shen, Cecilia
Chemistry: fertilizers
Processes and products
Forms or conditioning
71 93, 544204, 544210, 544213, 544299, 544301, A01N 4354, A01N 43653, A01N 4368, C07D23960
Patent
active
050530704
ABSTRACT:
Disclosed are herbicidally active pyrimidine derivatives of the formula ##STR1## wherein R represents a hydrogen atom or an etherifying group, e.g., a lower alkyl, lower alkenyl, lower alkynyl, phenyl-substituted lower alkenyl, lower haloalkenyl, cycloalkyl, substituted phenyl-substituted lower alkenyl or phenyl-substituted lower alkynyl group; or a group represented by the following formula: ##STR2## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, X a halogen atom or a lower alkyl or lower alkoxyl group, m and n individually 0-2, and when m is 2, both Xs may be the same or different, and herbicidal compositions containing the same, alone or in combination with another herbicidally active compound, the pyrimidine derivatives being prepared by reaction of 2-(4,6-dimethoxy-2-pyrimidinyloxy)benzaldehyde with NH.sub.2 OR or with a salt of hydroxylamine followed by reaction with a halide of the formula RY wherein R has the same value as above and Y is Cl, Br or I.
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Jojima et al., "Synthesis and Herbicidal Activities of Phenoxypyrimidines and Phenoxytriazines", Agr. Biol. Chem., vol. 39, No. 9, pp. 896-905, 1966.
Asano Tamotsu
Gohbara Masatoshi
Ishii Tsutomu
Nishida Makoto
Ozawa Shuji
Mitsui Toatsu Chemicals Incorporated
Shen Cecilia
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