Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Sodium Carbonate → 9-Hydroxy-7-(3-methyl-2-octyl)-2,2,-dimethyl-4-oxo-1,2,3,4-tetrahydrocyclopenta[c] [1]benzopyran
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Sodium Carbonate | HCID 10340 | — |
| 반응물 | Phosphorus oxychloride | HCID 24813 | — |
| 반응물 | 5-(3-Methyloctan-2-yl)benzene-1,3-diol | HCID 258176 | — |
| 반응물 | Ethyl 4,4-dimethyl-2-oxocyclopentane-1-carboxylate | HCID 11735559 | — |
| 용매 | Benzene | HCID 241 | — |
| 생성물 | 9-Hydroxy-7-(3-methyl-2-octyl)-2,2,-dimethyl-4-oxo-1,2,3,4-tetrahydrocyclopenta[c] [1]benzopyran | HCID 54133853 | — |
반응 단계
to 13.5 g. of 5-(3-methyl-2-octyl)-resorcinol and 10.5 g. of 4,4-dimethyl-2-carboethoxycyclopentanone [Canadian J. of Chem. 47, 1982-1988 (1969)] in 59 ml. of benzene was added 4.3 ml. of phosphorus oxychloride with stirring and refluxing for 6 hours. The red solution was let stand at room temperature for 8 hours, poured into ice and sodium carbonate solution. The colorless mixture was extracted with ether, dried over magnesium sulfate and concentrated. The mixture was extracted with cold pentane and the pentane was discarded. The residue [9-hydroxy-7-(3-methyl-2-octyl)-2,2-dimethyl-4-oxo-1,2,3,4-tetrahydrocyclopenta[ c][1]benzopyran] was obtained as a gummy solid.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US03941782 |
| 출처 데이터셋 | uspto-grants-1976_03 |
| ORD ID | ord-11315d3d7c174797a95fe7c427770b3b |
| 출처 메모 | uspto-grants-1976_03 |