Method for preparation of 2-methyl-1,2-benzisothiazolin-3-one
US9988360B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Nov 11, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Nov 11, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D275/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparation of 2-methyl-1,2-benzisothiazolin-3-one from 1,2-benzisothiazolin-3-one by contacting 1,2-benzisothiazolin-3-one with an alkali metal hydroxide and dimethyl sulfate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.