参与物
| 角色 | 名称 | HCID | 投料 |
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| 反应物 | 甲酸甲酯 | HCID 7865 | — |
| 反应物 | Methyl 3-carbamoylisobutyrate | HCID 11768702 | — |
| 反应物 | HCID 178418416 | HCID 178418416 | — |
| 溶剂 | (5BETA,17BETA)-17-羟基-17-(甲基-D3)-2'H-雄甾-2-烯并[3,2-C]吡唑-5'(1'H)-酮 | HCID 887 | — |
| 产物 | 甲酰胺 | HCID 713 | — |
| 产物 | 甲基丁二酸二甲酯 | HCID 15350 | — |
反应步骤
The procedure in Example 3 (3) was repeated to proceed with heating stirring reaction except that in place of 180 g of methyl formate and 96 g of methanol, 200 g of methanol was charged in the autoclave and carbon monoxide was pressurized into the autoclave so as to maintain the internal pressure at 40 kg/cm2G. After the temperature of the content in the autoclave reached 60° C., carbon monoxide was fed in the autoclave so as to maintain the internal pressure at 40 kg/cm2G to proceed with the reaction for 3 hours. Subsequently, the content therein was cooled, internal pressure was gradually lowered to atmospheric pressure, and the reaction product was taken out. As a result of analysis therefor, the conversion of methyl 3-carbamoylisobutyrate was 81.4% and there were obtained dimethyl methylsuccinate at a selectivity of 95.7% and formamide at a selectivity of 94.4%, each based on the reacted methyl 3-carbamoylisobutyrate.
来源与证据
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 专利号 | US05618953 |
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| 来源数据集 | uspto-grants-1997_04 |
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| ORD ID | ord-e5055da4b54a4b05b2c5db3de2eb6879 |
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| 来源说明 | uspto-grants-1997_04 |
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