Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
4-Nitrophenol → 6-nitro-3,4-dihydro-2H-1-benzopyran-4-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 4-Nitrophenol | HCID 980 | — |
| 반응물 | Acrylic Acid | HCID 6581 | — |
| 반응물 | Phenothiazine | HCID 7108 | — |
| 반응물 | Hydrofluoric Acid | HCID 14917 | — |
| 생성물 | 6-nitro-3,4-dihydro-2H-1-benzopyran-4-one | HCID 5228831 | — |
반응 단계
Following the same procedure as Example 1, p-nitrophenol (34.8 grams), acrylic acid (27 grams), and an inhibitor, phenothiazine (0.02 grams) was added to the pressure reactor. The anhydrous hydrogen fluoride (110 grams) was added before the system was warmed. When the reaction temperature was attained, a pressure of 140 psig was noted, similar to previous reactions. Work-up was carried out as previous examples and the 6-Nitro-4-Chromanone was isolated and characterized.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04992564 |
| 출처 데이터셋 | uspto-grants-1991_02 |
| ORD ID | ord-da5d1197fd644d779e21cbae81c0ff80 |
| 출처 메모 | uspto-grants-1991_02 |