Water → 7-Methyl-1-benzothiophene
반응식
C(O[CH:4](OCC)[CH2:5][S:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[CH3:13])C.O>ClC1C=CC=CC=1>[CH3:13][C:8]1[C:7]2[S:6][CH:5]=[CH:4][C:12]=2[CH:11]=[CH:10][CH:9]=1참가 물질
4
실험 절차
To a solution of intermediate 136, (2,2-diethoxyethyl)(o-tolyl)sulfane (0.58 g, 2.41 mmol) in chlorobenzene (20 mL) was added polyphosphoric acid. The reaction mixture was stirred at reflux for 18 h. Water (100 mL) was then added and the organic material was extracted with CH2Cl2 (2×50 mL). The organic solution was dried (MgSO4) and concentrated in vacuo to afford 335 mg (94% yield) of the title compound: 1H NMR (400 MHz, CDCl3) δ: 7.68 (1H, d, J=7.8 Hz), 7.43 (1H, d, J=5.4 Hz), 7.36 (1H, d, J=5.4 Hz), 7.30 (1H, dd, J=7.8, 7.1 Hz), 7.14 (1H, d, J=7.1 Hz), 2.58 (3H, s); LCMS (M+H)+ m/z 148.
후처리
- temperatureat reflux for 18 h
- extractionthe organic material was extracted with CH2Cl2 (2×50 mL)
- dry with materialThe organic solution was dried (MgSO4)
- concentrationconcentrated in vacuo
출처 및 근거
- ORD 기록
- ord-a8509f7ac001470280b7d525d8909a9b
- 출처 데이터셋
- uspto-grants-2007_01
- 특허 번호
- US07157447B2
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