1-(2-Hydroxyethyl)piperazine → 3-[4-(2-Hydroxyethyl)piperazin-1-yl]propan-1-ol
反応式
[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][NH:7][CH2:6][CH2:5]1.[CH2:10]([OH:13])[CH:11]=[CH2:12].[OH-].[Na+].C(=O)([O-])[O-].[K+].[K+]>O>[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][N:7]([CH2:12][CH2:11][CH2:10][OH:13])[CH2:6][CH2:5]1参加物
6
実験手順
1-(2-hydroxyethyl)-piperazine, 26 grams, freshly distilled allyl alcohol, 36 g and sodium hydroxide, 8 g are heated to 118°-120° C. for 36 hours. The viscous reaction mixture is taken up into 250 ml water, and solid potassium carbonate is added to saturate the warmed solution. A yellow oil, the product, rises to the top. It is extracted with tetrahydrofuran, the solvent evaporated, the residue dissolved in ethanol, the solution filtered, and the ethanol evaporated under vacuum to a thick oil, which solidifies on standing to give the isolated product, [I], above.
後処理
- additionis added
- concentrationto saturate the warmed solution
- extractionIt is extracted with tetrahydrofuran
- customthe solvent evaporated
- dissolutionthe residue dissolved in ethanol
- filtrationthe solution filtered
- customthe ethanol evaporated under vacuum to a thick oil, which
- customto give the isolated product, [I]
出典と根拠
- ORDレコード
- ord-dde797f15e3247bea2cbf830a800653a
- 出典データセット
- uspto-grants-1988_07
- 特許番号
- US04755515
反応ノート
読み込み中…