Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Dimethylmaleic anhydride → 4,5-Dimethylpyridazine-3,6-diol
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Dimethylmaleic anhydride | HCID 13010 | — |
| 반응물 | Hydrazinium chloride | HCID 115031 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | 4,5-Dimethylpyridazine-3,6-diol | HCID 242280 | 99.3% |
반응 단계
Hydrazine hydrochloride (58 g, 552 mmol) is dissolved in hot water (300 mL) and dimethyl maleic anhydride (58 g, 460 mmol) is added in portions and the suspension stirred at reflux for 16 h. The suspension is cooled down to room temperature and the precipitate is filtered, washed with water and dried at 40° C. under vacuum to yield 4,5-dimethyl-1,2-dihydro-pyridazine-3,6-dione (36) (64 g, 99%).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US08481542B2 |
| 출처 데이터셋 | uspto-grants-2013_07 |
| ORD ID | ord-0327013cf966424c9a9f534b8b90572f |
| 출처 메모 | uspto-grants-2013_07 |