反応式
[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][C:8]#[N:9])=[CH:3][CH:2]=1.Cl.[CH2:11]([N:18]([CH2:22][CH2:23]Cl)[CH2:19][CH2:20][Cl:21])[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[OH-].[Na+].Cl.O1CCOCC1>[Br-].C([P+](CCCC)(CCCC)CCCC)CCCCCCCCCCCCCCC>[ClH:21].[CH2:11]([N:18]1[CH2:22][CH2:23][C:7]([C:8]#[N:9])([C:4]2[CH:5]=[CH:6][N:1]=[CH:2][CH:3]=2)[CH2:20][CH2:19]1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1参加物
反応条件
- 温度
- 100 °C
実験手順
Combine 4-pyridylacetonitrile (19.4 g, 125 mmol), N-benzyl-N,N-bis-(2-chloroethyl)amine hydrochloride (33.6 g, 125 mmol), and hexadecyltributylphosphonium bromide (3 g, 6 mmol) and a 50% aqueous sodium hydroxide solution. Heat to 100° C. After 1 hour, cool the reaction mixture to ambient temperature and repeatedly extract with diethyl ether. Extract the combined organic layers twice with an aqueous 10% hydrochloric acid solution (350 mL). Combine the aqueous layers and neutralize with an aqueous 50% sodium hydroxide solution. Again extract three times with diethyl ether, combine the organic layers, dry over MgSO4, and filter. Add a solution of hydrochloric acid in dioxane (60 mL 4M, 240 mmol) and evaporate in vacuo to give 1-benzyl-4-cyano-4-(pyridin-4-yl)-piperidine hydrochloride.
後処理
- temperaturecool the reaction mixture to ambient temperature
- extractionrepeatedly extract with diethyl ether
- extractionExtract the combined organic layers twice with an aqueous 10% hydrochloric acid solution (350 mL)
- extractionAgain extract three times with diethyl ether
- dry with materialdry over MgSO4
- filtrationfilter
- customevaporate in vacuo
出典と根拠
- ORDレコード
- ord-a357332337714054ae8a42857444bccd
- 出典データセット
- uspto-grants-1998_10
- 特許番号
- US05824690
関連ノート
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