# US 5,710,278 A · Herbicidal 1-pyridyltetrazolinones

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,710,278 A
- Document ID: US5710278A
- Status: Granted
- Kind: A
- Application number: 08/802,152
- Filed: 1997-02-19
- Granted: 1998-01-20
- Earliest claimed: 1994-07-12
- Assignees: Nihon Bayer Agrochem K.K.
- Inventors: Toshio Goto; Koichi Moriya; Fritz Maurer; Seishi Ito; Katsuaki Wada; Kazuhiro Ukawa; Ryo Watanabe; Asami Ito
- Web page: https://patentgrep.com/patent/US5710278A

## CPC

- C07D 401/04: directly linked by a ring-member-to-ring-member bond
- A01N 47/38: containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- 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

Herbicidal tetrazolinone derivatives of the formula: ##STR1## in which R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, and R.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded form an optionally benzofused heterocyclic ring, which is optionally substituted by C.sub.1-4 alkyl, n is 0, 1, 2 or 3, and R.sup.3 each independently is nitro, halogen, alkyl, haloalkyl, alkylthio or phenoxy.

## Claims

### Claim 1

A pyridyltetrazolonone of the formula ##STR31## in which n is 0, 1, 2, or 3, and
R.sup.3 each independently is nitro, halogen, alkyl, haloalkyl, alkoxy, alkylthio or phenoxy.

### Claim 2 (depends on 1)

A compound according to claim 1, in which
R.sup.3 is nitro, fluoro, chloro, bromo, C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylthio or phenoxy.

### Claim 3 (depends on 1)

A compound according to claim 1, in which
n is 0, 1 or 2.