Thiourea → 2-amino-4H,5H,6H,7H,8H-cyclohepta[d][1,3]thiazol-8-one
反応式
Br[CH:2]1[C:8](=[O:9])[CH2:7][CH2:6][CH2:5][CH2:4][C:3]1=O.[NH2:11][C:12]([NH2:14])=[S:13]>CCO>[NH2:14][C:12]1[S:13][C:2]2[C:8](=[O:9])[CH2:7][CH2:6][CH2:5][CH2:4][C:3]=2[N:11]=1参加物
4
実験手順
To a solution of 2-bromocycloheptane-1,3-dione (45.17 mmol) in abs. EtOH (100 mL) was added thiourea (3.61 g, 47.43 mmol). The reaction mixture was stirred at room temperature overnight at which point the EtOH was removed under reduced pressure and the resulting dark orange residue was triturated with DCM. The residue was recrystallized from EtOH to afford 26z as an off white solid (6 g, 50% overall crude yield from cycloheptane-1,3-dione). 1H NMR (300 MHz, DMSO-d6): δ 8.87 (br s, 2H), 2.87 (t, J=6 Hz, 2H), 2.64 (t, J=6 Hz, 2H), 1.89-1.85 (m, 2H), 1.81-1.77 (m, 2H);
後処理
- customwas removed under reduced pressure
- customthe resulting dark orange residue was triturated with DCM
- customThe residue was recrystallized from EtOH
出典と根拠
- ORDレコード
- ord-e44376b3615147d7b06d420c1d947507
- 出典データセット
- uspto-grants-2013_03
- 特許番号
- US08389736B2
反応ノート
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