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3-Hydroxypiperidine → HCID 178501991、化合物
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 3-Hydroxypiperidine | HCID 23293 | — |
| 反応物 | HCID 178501976 | HCID 178501976 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | HCID 178501991 | HCID 178501991 | — |
反応手順
A suspension of 5.2 g. of dimethyl 6-chloro-2,4-pyrimidine-dicarbamate-3-oxide in 300 ml. of methylene chloride is treated with 12.4 g. of 3-hydroxy-piperidine and stirred for 60 hours under an argon atmosphere. The residue is then filtered off and the filtrate is concentrated, a white precipitate separating out. This precipitate is filtered off and recrystallized from a mixture of methylene chloride and methanol, there being obtained pure dimethyl racemic-6-(3-hydroxyl-1-piperidinyl)-2,4-pyrimidine-dicarbamate-3-oxide, having a melting point of 255° C. (decomposition).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04150131 |
| 出典データセット | uspto-grants-1979_04 |
| ORD ID | ord-63daa7af306e483fa2aa28abefc1ecb9 |
| 出典メモ | uspto-grants-1979_04 |