Isocyanate compound manufacturing method
US10053419B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Nov 27, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Nov 27, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C263/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
By reacting 3-methyl-2-methoxymethylaniline, etc. with a phosgene compound in the presence of a tertiary amine at 10° C. to 14° C. in at least one kind of solvent selected from a group consisting of chlorobenzene and ortho-dichlorobenzene, an isocyanate compound such as 3-methyl-2-methoxymethyl-1-isocyanatobenzene can be manufactured with good yields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.