Method for producing 2,4,6-tris(hydroxyphenyl)-1,3,5-triazine compound
US8716474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Oct 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method of producing 2,4,6-tris(hydroxyphenyl)-1,3,5-triazine compound in which no rapid solidification or the like occurs and generation of by-products is suppressed, thereby enabling to reduce decrease in the yield.Particularly, the present invention is a method of producing 2,4,6-tris(hydroxyphenyl)-1,3,5-triazine compound represented by the following Formula (1):wherein the reaction between cyanuric halide compound represented by the following Formula (2):and hydroxyphenyl compound represented by the following Formula (3):is carried out by using, as the reaction solvent, a solvent containing sulfolane as the main component in the presence of a Lewis acid at an amount of 0.3 to 0.7 equivalent with respect to 1 equivalent of halogen atom of the cyanuric halide compound represented by the Formula (2), or by using a mixed solvent of inert solvent and cycloalkyl alkyl ether represented by the following Formula (4):Z1—O—Z2. (4)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.