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Ethyl 2-(furan-2-ylmethylidene)-3-oxobutanoate → 5-Methyl-7-(2-furyl)-1,2,3,7-tetrahydroimidazolo[1,2-a]pyridine-6,8-dicarboxylic acid diethyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl 2-(furan-2-ylmethylidene)-3-oxobutanoate | HCID 252577 | — |
| 反応物 | Ethyl (imidazolidin-2-ylidene)acetate | HCID 12377942 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | 5-Methyl-7-(2-furyl)-1,2,3,7-tetrahydroimidazolo[1,2-a]pyridine-6,8-dicarboxylic acid diethyl ester | HCID 68119053 | 65% |
反応手順
Boiling a solution of 6.9 g of 2-furfurylideneacetoacetic acid ethyl ester and 5.2 g of 2-carbethoxymethylideneimidazolidine in 50 ml of ethanol for 8 hours yields 5-methyl-7-(2-furyl)-1,2,3,7 -tetrahydroimidazolo[1,2-a]pyridine-6,8-dicarboxylic acid diethyl ester of melting point 164° (ethanol).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04053614 |
| 出典データセット | uspto-grants-1977_10 |
| ORD ID | ord-a3c8c37307684b7faec326511ee5b8b9 |
| 出典メモ | uspto-grants-1977_10 |