Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
2-Pyrazoline → 1-(2,6-Difluorophenylsulphonylcarbamoyl)-2-pyrazoline
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 2-Pyrazoline | HCID 66962 | — |
| 반응물 | N-(2,6-difluorophenylsulphonyl)urea | HCID 53937098 | — |
| 용매 | 1,4-Dioxane | HCID 31275 | — |
| 생성물 | 1-(2,6-Difluorophenylsulphonylcarbamoyl)-2-pyrazoline | HCID 23050749 | — |
반응 단계
N-(2,6-difluorophenylsulphonyl)urea in an amount of 2.36 and 1.40 g of 2-pyrazoline in 20 ml of dioxane are refluxed for 4 hours. After evaporation of the solvent at reduced pressure, the remaining solid is dissolved in 20 ml of water. This solution is filtrated and acidified with conc. hydrochloric acid. The precipitate is sucked off, washed with water and dried, yielding the title product, viz. 1-(2,6-difluorophenylsulphonylcarbamoyl)-2-pyrazoline in a yield of 1.87 g; melting point 183° C.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04927452 |
| 출처 데이터셋 | uspto-grants-1990_05 |
| ORD ID | ord-b18fa86a7df846fa805fdd7829ec0e5a |
| 출처 메모 | uspto-grants-1990_05 |