Acetic Acid → 1-Hydroxydibenzothiophene

반응식

[CH:1]1[C:9]2[C:8]3[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=3[S:6][C:5]=2[CH:4]=[CH:3][CH:2]=1.Br.CC(O)=[O:17]>>[OH:17][C:1]1[C:9]2[C:8]3[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=3[S:6][C:5]=2[CH:4]=[CH:3][CH:2]=1

참가 물질

반응물 3

HCID 176Acetic Acid

HCID 260Hydrogen Bromide

HCID 3023Dibenzothiophene

생성물 1

HCID 1501301-Hydroxydibenzothiophene

반응 조건

온도: 130 °C

실험 절차

To a stirred solution of the dibenzothiophene (0.040 g, 0.19 mmoles) isolated from Step D in HOAc (2.5 mL) was added 40% HBr (0.65 mL, 5.6 mmoles) under N2. The reaction was heated to 130° C. for 20 hrs. The resulting green solution was partitioned between EtOAc and ice/brine. The organic layer was washed with sat. NaHCO3 (2X) and brine. The EtOAc extract was dried over Na2SO4 and concentrated in vacuo to give an off-white solid (0.0366 g). Purification by plate layer chromatography with 1:1 hexane/CH2Cl2 afforded the desired phenol as a white solid (0.0294 g).

후처리

customThe resulting green solution was partitioned between EtOAc and ice/brine
washThe organic layer was washed with sat. NaHCO3 (2X) and brine
extractionThe EtOAc extract
dry with materialwas dried over Na2SO4
concentrationconcentrated in vacuo

출처 및 근거

ORD 기록: ord-f98fc71c0add439e97834459833c1647
출처 데이터셋: uspto-grants-2001_03
DOI: 10.6084/m9.figshare.5104873.v1
특허 번호: US06207823B1

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