Thiourea → 2-amino-4H,5H,6H,7H,8H-cyclohepta[d][1,3]thiazol-8-one
반응식
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]=1참가 물질
4
실험 절차
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);
후처리
- customwas removed under reduced pressure
- customthe resulting dark orange residue was triturated with DCM
- customThe residue was recrystallized from EtOH
출처 및 근거
- ORD 기록
- ord-e44376b3615147d7b06d420c1d947507
- 출처 데이터셋
- uspto-grants-2013_03
- 특허 번호
- US08389736B2
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