Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Glyoxal → 6-Ethoxy-3-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Glyoxal | HCID 7860 | — |
| 반응물 | Phosphorus oxide (P4O10) | HCID 14812 | — |
| 반응물 | Pyran | HCID 186148 | — |
| 반응물 | Glyoxal hydrate | HCID 21880647 | — |
| 반응물 | 1-Ethoxy-1,3-pentadiene | HCID 53769642 | — |
| 생성물 | 6-Ethoxy-3-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde | HCID 20571373 | — |
반응 단계
Monomeric glyoxal was generated by heating a mixture of 8.0 g. of glyoxal hydrate (0.117 mol. of monomer) and 48.0 g. of phosphorus pentoxide over a gentle flame over 35 minutes. The liberated monomer was bubbled (argon stream) into 4.8 g. (0.04 mol) of 1-ethoxy-1,3-pentadiene (purity 92.3%) at 120°. After all the monomer had been generated, the solution was heated at 120° for an additional 45 minutes. Distillation afforded 1.32 g. of the pyran (b0.07 =56°, purity 91%) and 1.86 g. of recovered diene (yield based on diene-32%, based on glyoxal=6.6%).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04225514 |
| 출처 데이터셋 | uspto-grants-1980_09 |
| ORD ID | ord-2366a6ae4634412587007d52d3c06a6a |
| 출처 메모 | uspto-grants-1980_09 |