Diisopropylethylamine → Ammonia
反応式
Cl.[NH2:2][C:3]1C=[CH:14][C:6]([O:7]CC(OCC)=O)=[CH:5][C:4]=1C.C1C[N:20]([C:22](Cl)=[N+:23]2[CH2:27][CH2:26][CH2:25][CH2:24]2)CC1.F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C.CO.C(Cl)(Cl)Cl>C(Cl)Cl.CCOC(C)=O>[NH3:2].[NH2:20][C:22]([NH2:23])=[O:7].[NH:2]1[CH2:3][CH2:4][CH2:5][CH2:6][CH2:14]1.[NH:23]1[CH2:22][CH2:27][CH2:26][CH2:25][CH2:24]1参加物
8
反応物 4
生成物 2
試薬・触媒・溶媒 2
実験手順
20-2 (486 mg; 1.6 mmol) and 10-4 (250 mg, 1.6 mmol) were dissolved in CH2Cl2. PYCLU (1.8 mmol, 634 mg) was added, followed by diisopropylethylamine (6.4 mmol, 1.1 mL). The reaction is stirred for 2 days. The reaction mixture is diluted with EtOAc and washed with H2 O, 10% KHSO4, sat NaHCO3 and brine. The organic layer is dried (MgSO4), filtered and concentrated to yield a tan oil. Flash chromatography (10% MeOH/CHCl3 sat NH3) yielded desired product (20-3) plus bis piperidine urea by-product. This material is triturated with hexane to remove most of the by-product.
後処理
- washwashed with H2 O, 10% KHSO4
- dry with materialThe organic layer is dried (MgSO4)
- filtrationfiltered
- concentrationconcentrated
- customto yield a tan oil
出典と根拠
- ORDレコード
- ord-ea8570e7460a4bcfbb5a8b6aeeeb0f7f
- 出典データセット
- uspto-grants-1998_12
- 特許番号
- US05854245
反応ノート
読み込み中…