Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Sulfuric Acid → 5-Chloro-2-hydroxy-4-methylbenzenesulfonic acid
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Sulfuric Acid | HCID 1118 | — |
| 반응물 | 4-Chloro-3-methylphenol | HCID 1732 | — |
| 반응물 | Phenol, 2,4-dichloro-3-methyl-6-nitro- | HCID 170222 | — |
| 생성물 | 5-Chloro-2-hydroxy-4-methylbenzenesulfonic acid | HCID 11042323 | — |
반응 단계
According to the present invention there is provided a process for preparing 2-nitro-4,6-dichloro-5-methylphenol comprising sulphonation of 4-chloro-5-methyl-phenol with concentrated sulphuric acid at elevated temperature to form 2-sulpho-4-chloro-5-methylphenol, thereafter diluting the reaction mixture with water to a sulphuric acid content of 20 to 30%, chlorinating the resulting 2-sulpho-4-chloro-5-methylphenol with chlorine at elevated temperature and normal or elevated pressure to form 2-sulpho-4,6-dichloro-5-methylphenol and reacting the 2-sulpho-4,6-dichloro-5-methylphenol with nitric acid.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04038328 |
| 출처 데이터셋 | uspto-grants-1977_07 |
| ORD ID | ord-969d40e96a0947f5af9516ea01802910 |
| 출처 메모 | uspto-grants-1977_07 |