Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Dimethylacetylene → Dimethyl 2,3-dimethyl-2-cyclopropene-1,1-dicarboxylate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Dimethylacetylene | HCID 10419 | — |
| 반응물 | 2-Diazonio-1,3-dimethoxy-3-oxoprop-1-en-1-olate | HCID 547673 | — |
| 촉매 | Mercury | HCID 23931 | — |
| 용매 | Hexafluorobenzene | HCID 9805 | — |
| 생성물 | Dimethyl 2,3-dimethyl-2-cyclopropene-1,1-dicarboxylate | HCID 19096835 | 46.2% |
반응 단계
A nitrogen-degassed solution of 37.5 grams (0.69 mole) of 2-butyne and 20.0 grams (0.13 mole) of dimethyl diazomalonate in approximately 325 grams of hexafluorobenzene was photolyzed for approximately 100 hours, at 0° C.-5° C., employing a 100-watt Hanovia mercury lamp in a manner similar to that described in Example XCVI Part A. Similar workup of the reaction mixture afforded 10.8 grams (0.06 mole) of dimethyl 2,3-dimethyl-2-cyclopropene-1,1-dicarboxylate. NMR analysis of the product indicated the following:
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05123951 |
| 출처 데이터셋 | uspto-grants-1992_06 |
| ORD ID | ord-45b0c1b72dcb41cf8cec21d7fa3430ea |
| 출처 메모 | uspto-grants-1992_06 |