# US 4,399,072 A · N-Phenyl-N-methylurea derivatives

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- Number: US 4,399,072 A
- Document ID: US4399072A
- Status: Granted
- Kind: A
- Application number: 06/225,248
- Filed: 1981-01-15
- Granted: 1983-08-16
- Earliest claimed: 1977-12-13
- Assignees: Sumitomo Chemical Company, Limited
- Inventors: Takemoto Ichiki; Ryo Yoshida; Seizo Sumida; Kamoshita Katsuzo
- Web page: https://patentgrep.com/patent/US4399072A

## CPC

- C07C 265/12: having isocyanate groups bound to carbon atoms of six-membered aromatic rings
- A01N 47/30: Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
- C07C 275/36: with at least one of the oxygen atoms further bound to a carbon atom of a six-membered aromatic ring, e.g. N-aryloxyphenylureas
- C07C 275/64: having nitrogen atoms of urea groups singly-bound to oxygen atoms
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

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.

## Claims

### Claim 1

A compound of the formula: ##STR24## wherein X is a hydrogen atom, a halogen atom or a trifluoromethyl group and R is a methyl group or a methoxy group.

### Claim 2 (depends on 1)

The compound according to claim 1, wherein X is a hydrogen atom, a chlorine atom, a bromine atom, a fluorine atom or a trifluoromethyl group.

### Claim 3 (depends on 1)

The compound according to claim 1, wherein X is a hydrogen atom and R is a methoxy group.