摘要:
Novel N'-4-(2-naphthyloxy)phenyl-N-methylurea derivatives of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom or a trifluoromethyl group and R is a methyl or methoxy group having a herbicidal activity, particularly effective in exterminating weeds in the cultivation of soybean and gramineous crops such as wheat and barley, and/or having a fungicidal activity especially effective in controlling the rust of wheat and barley.
摘要:
Novel N'-4-(2-naphthyloxy)phenyl-N-methylurea derivatives of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom or a trifluoromethyl group and R is a methyl or methoxy group having a herbicidal activity, particularly effective in exterminating weeds in the cultivation of soybean and gramineous crops such as wheat and barley, and/or having a fungicidal activity especially effective in controlling the rust of wheat and barley.
摘要:
A compound of the formula: ##STR1## wherein R is a methyl group or an ethyl group shows a strong herbicidal activity against a wide variety of weeds without any material chemical injury to crop plants.
摘要:
An N'-phenyl-N-methyl-urea derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, lower alkyl, lower alkoxy, lower alkylthio, halogen or trifluoromethyl, R.sup.4 is hydrogen or lower alkyl, A is methyl or methoxy, X is oxygen or sulfur, Y is hydrogen or halogen, Z is a straight or branched alkylene chain having not more than 8 carbon atoms which may have no less than one atom of oxygen and/or sulfur inside and/or at the end of the alkylene chain and n is an integer of 1 to 3, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals or fish or any chemical injury to said crop plants.
摘要:
N-(4-Benzyloxyphenyl)-N'-methyl-N'-methoxyurea of the formula: ##STR1## which shows a pronounced herbicidal activity against weeds in the cultivation of soybean without any material toxicity to mammals and soybean plants.
摘要:
A herbicidal composition exerting an enhanced herbicidal activity against various weeds including broad-leaved weeds and Gramineae grasses without any phytotoxicity to soybean, which comprises as an active ingredient N'-[4-(4-methylphenethyloxy)phenyl]-N-methoxy-N-methylurea and as a potentiating agent at least one compound of the formula: ##STR1## and their salts, esters and amides.
摘要:
Oximecarbamate derivatives of the formula: ##STR1## wherein R.sub.1 is methyl or methoxy, R.sub.2 is lower alkyl, lower alkoxy, methylenedioxy, methylthio, halogen or trifluoromethyl, R.sub.3 is hydrogen, methyl or ethyl, X and Z are each oxygen or sulfur, m is an integer of 0 to 5 when R.sub.2 is fluorine or an integer of 0 to 3 when R.sub.2 is other than fluorine, R.sub.2 being same or different in case of m being an integer of 2 or 3, n and r are each an integer of 0 or 1 but when one of them is zero, the other is not zero, q is an integer of 0 or 1 and t is an integer of 0 to 4, which are useful as herbicides having high selectivity to crop plants.
摘要:
Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a methyl group or a methoxy group, R.sub.2 is a hydrogen atom or a lower alkyl group, R.sub.3, which may be the same or different, is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group or a trifluoromethyl group, n is an integer of 0 to 5, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom and Z is a straight or branched C.sub.1 -C.sub.8 alkylene group which may have no less than one atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants as well as a notable fungicidal activity against a wide variety of phytopathogenic fungi causing plant diseases to crop plants without any material toxicity to mammals and fish or any chemical injury to said crop plants.
摘要:
Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a methyl group or a methoxy group, R.sub.2 is a hydrogen atom or a lower alkyl group, R.sub.3, which may be the same or different, is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group or a trifluoromethyl group, n is an integer of 0 to 5, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom and Z is a straight or branched C.sub.1 -C.sub.8 alkylene group which may have no less than one atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants as well as a notable fungicidal activity agaist a wide variety of phytopathogenic fungi causing plant diseases to crop plants without any material toxicity to mammals and fish or chemical injury to said crop plants.
摘要:
A compound of the formula: ##STR1## wherein R is a lower alkyl group substituted with two or three fluorine atoms and X is a halogen atom, a lower alkyl group or a trifluoromethyl group, which is useful as a herbicide against a variety of weeds with a high selectivity to cotton, wheat and rice plants.