Process for producing substituted aminoquinazolinone derivative, intermediate therefor, and pest control agent
US8034931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2004 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Jul 24, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D401/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing a substituted aminoquinazolinone derivative of formula (I), characterized by reducing a substituted iminoquinazolinone derivative of formula (II) with hydrogen in the presence of a catalyst and either of a halogen compound and a sulfur compound; a substituted iminoquinazolinone derivative of formula (II′); and a pest control agent containing the derivative of formula (II′) or a salt thereof as an active ingredient and a method of using the same (in the formulae, R represents hydrogen, formyl, (C1-C6) alkyl, (C1-C6)alkoxy(C1-C3)alkyl, (C1-C6) alkylsulfonyl, optionally substituted phenylcarbonyl, etc.; R1 represents an optionally substituted, 5- or 6-membered heterocycle having one to three heteroatoms selected among oxygen, sulfur, and nitrogen; R2 represents hydrogen or (C1-C3) alkyl; X and X′ may be the same or different and each represents (C1-C6) haloalkyl, (C1-C6) haloalkoxy, etc.; n is an integer of 0; and n′ is an integer of 1-4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.