関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | O-Cresol | HCID 335 | — |
| 反応物 | N,N'-Dimethylurea | HCID 7293 | — |
| 反応物 | Maleic acid anilide | HCID 1550938 | — |
| 生成物 | 1,3-Dimethyl-5-(phenylaminocarbonyl methylene)-hydantoin | HCID 54089272 | — |
反応手順
A mixture of 19.1 parts of N-phenyl maleic acid monoamide 8.8 parts of N,N'-dimethyl urea and 100 parts of cresol is stirred for 2.5 hours at 165° C. The solvent is distilled off in vacuo and the residue fractionated. An oily liquid distills over at a boiling point of from 220° to 223° C./0.1 Torr and solidifies after a while. Recrystallisation from n-propanol gives the compound confirmed by IR- (bands characteristic of hydantoins at 1705 and 1765 cm-1 and of amide at 1690 cm-1) and NMR-spectra.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04156074 |
|---|
| 出典データセット | uspto-grants-1979_05 |
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| ORD ID | ord-0aac9f2dd7fc4702b97da29a8053b702 |
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| 出典メモ | uspto-grants-1979_05 |
|---|
