Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Hydroquinone → Butyl 6-ethoxy-3-methyl-3,6-dihydro-2H-pyran-2-carboxylate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Hydroquinone | HCID 785 | — |
| 반응물 | Butyl oxoacetate | HCID 80521 | — |
| 반응물 | 1-Ethoxy-1,3-pentadiene | HCID 53769642 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 생성물 | Butyl 6-ethoxy-3-methyl-3,6-dihydro-2H-pyran-2-carboxylate | HCID 23338794 | — |
반응 단계
Following the procedure of Example 12, a solution of 26.7 g. (0.226 mol) of 1-ethoxy-1,3-pentadiene (purity, 95%), 32.5 g. (0.25 mol) of butyl glyoxylate and 0.250 g. of hydroquinone in 250 ml. of methylene chloride was refluxed for 48 hours to give 28.0 g. of a mixture of 1-ethoxy-1,3-pentadiene and butyl glyoxylate and 20.32 g. of distilled 2H-pyran butyl ester (b1.0 = 100°-110° ) as an oil. Yield based on 1-ethoxy-1,3-pentadiene, 34%.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US03997529 |
| 출처 데이터셋 | uspto-grants-1976_12 |
| ORD ID | ord-fe0d84f6e20d4d2aaf47db79d103cbfc |
| 출처 메모 | uspto-grants-1976_12 |