# US 4,399,149 A · Fungicides

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- Number: US 4,399,149 A
- Document ID: US4399149A
- Status: Granted
- Kind: A
- Application number: 06/339,350
- Filed: 1982-01-15
- Granted: 1983-08-16
- Earliest claimed: 1981-01-23
- Assignees: Shell Oil Company
- Inventors: Pieter Ten Haken; Thomas W. Naisby; Andrew C. G. Gray
- Web page: https://patentgrep.com/patent/US4399149A

## CPC

- A01N 37/46: N-acyl derivatives
- C07C 259/00: Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups
- 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
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Use as agricultural fungicides of N-acyl-N-hydroxyalkanoic acid compounds of the formula ##STR1## and salts thereof, wherein each of the symbols has an assigned meaning.

## Claims

### Claim 1

A method for controlling fungi at a locus to be protected which comprises applying to the locus a fungicidal amount of a compound of the formula: ##STR10## and salts thereof, wherein R.sup.1 is hydrogen or phenyl, R.sup.2 is hydrogen or methyl, and R.sup.3 is hydrogen, methyl or ethyl.

### Claim 2 (depends on 1)

A method according to claim 1 wherein R.sup.1 is hydrogen.

### Claim 3 (depends on 2)

A method according to claim 2 wherein R.sup.2 is methyl.

### Claim 4 (depends on 3)

A method according to claim 3 wherein R.sup.3 is hydrogen and the compound is in the form of a salt.