Process for producing nitroguanidine derivatives
US7977496B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an improved process for producing nitroguanidine derivatives represented by the formula (3),which has an insecticidal activity, or a salt thereof, wherein the substituents are defined herein, in which nitroisourea derivatives represented by the following general formula (1) or a salt thereofwherein the substituents are defined herein, and compounds represented by the following general formula (2) or a salt thereof, wherein the substituents are defined herein,are reacted in the presence of a base in an aqueous solution wherein an inorganic salt is dissolved at not less than 50% of its saturated solubility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.