Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Water → 7-Hydroxy-4-(naphthalen-2-yl)-2H-1-benzopyran-2-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Water | HCID 962 | — |
| 반응물 | Resorcinol | HCID 5054 | — |
| 반응물 | 3-Naphthalen-2-yl-3-oxopropionic acid ethyl ester | HCID 2760158 | — |
| 용매 | Sulfuric Acid | HCID 1118 | — |
| 생성물 | 7-Hydroxy-4-(naphthalen-2-yl)-2H-1-benzopyran-2-one | HCID 20570495 | 26% |
반응 단계
A mixture of resorcinol (11.0 g, 0.1 mole) and ethyl 2-naphthoylacetate (24.2 g, 0.1 mole) in concentrated sulphuric acid (50 ml) was stirred at room temperature for 5 days then poured into water to give a yellow gum. The gum was washed several times with water then dissolved in ethanol and diluted with water to give 7-hydroxy-4-(2-naphthyl)coumarin as a fine pale brown precipitate in 26% yield.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04153617 |
| 출처 데이터셋 | uspto-grants-1979_05 |
| ORD ID | ord-2431d453db134b68904c6f187d1babe7 |
| 출처 메모 | uspto-grants-1979_05 |