Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
3-Methyl-2-butenoic acid → 4,8-Dimethylnona-3,7-dien-2-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 3-Methyl-2-butenoic acid | HCID 10931 | — |
| 반응물 | 3-Methyl-2-buten-1-OL | HCID 11173 | — |
| 반응물 | 4-Methyl-2,4-pentadien-2-yl acetate | HCID 54555518 | — |
| 용매 | Acetic Acid | HCID 176 | — |
| 생성물 | 4,8-Dimethylnona-3,7-dien-2-one | HCID 549663 | 86% |
반응 단계
110 parts of 4-methyl-2,4-pentadien-2-yl acetate and 60 parts of prenol are heated with 1.4 parts of 3,3-dimethylacrylic acid at about 180°C for 4 hours in a small pressure column at a pressure of 2 atmospheres, the acetic acid formed being distilled off continuously. Fractional distillation of the reaction product gives 61.8 parts of 4,8-dimethyl-3,7-nonadien-2-one (yield 86% of theory, conversion 62% based on prenol).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US03932462 |
| 출처 데이터셋 | uspto-grants-1976_01 |
| ORD ID | ord-272906040c7b45019dc23071b435746f |
| 출처 메모 | uspto-grants-1976_01 |