Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Phthalic Acid → 4-Chlorophthalic acid
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Phthalic Acid | HCID 1017 | — |
| 반응물 | Sodium Hydroxide | HCID 14798 | — |
| 반응물 | Chlorine | HCID 24526 | — |
| 반응물 | 3,6-Dichlorophthalic acid | HCID 85292 | — |
| 반응물 | 4,5-Dichlorophthalic acid | HCID 92600 | — |
| 반응물 | Benzenedicarboxylic acid, trichloro- | HCID 184214 | — |
| 반응물 | 3,4-dichlorophthalic Acid | HCID 3024151 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | 4-Chlorophthalic acid | HCID 6964 | 4% |
반응 단계
The chlorination of the phthalic acid is effected in analogy with known methods in water at 45° to 50° by admitting chlorine gas with the pH value being kept at approximately 5 by the addition of aqueous sodium hydroxide. After approximately 10 hours reacting, a mixture containing approximately 63% 4,5-dichlorophthalic acid, 17% 3,4-dichlorophthalic acid, 9% 3,6-dichlorophthalic acid, 6% trichlorophthalic acid and 4% 4-chlorophthalic acid (chromatographic analysis) is obtained. The mixture is heated under low vacuum to approximately 200° to yield the corresponding chlorophthalic acid anhydride. The product is employed as such for the reaction with the 1,8-diaminonaphthalene.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04417014 |
| 출처 데이터셋 | uspto-grants-1983_11 |
| ORD ID | ord-d60016a029df48afb38897ae76d8e14a |
| 출처 메모 | uspto-grants-1983_11 |