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Boron tribromide → 3-[3-(6-Hydroxy-m-tolyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione

HRID 1274549
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HRID 1274549 반응식
C[O:2][C:3]1[C:8]([CH3:9])=[CH:7][C:6]([C:10]2[C:14]3[CH:15]=[C:16]([N:19]4[C:24](=[O:25])[CH:23]=[C:22]([C:26]([F:29])([F:28])[F:27])[N:21]([CH3:30])[C:20]4=[O:31])[CH:17]=[CH:18][C:13]=3[S:12][N:11]=2)=[CH:5][CH:4]=1.B(Br)(Br)Br>C(Cl)Cl>[OH:2][C:3]1[C:8]([CH3:9])=[CH:7][C:6]([C:10]2[C:14]3[CH:15]=[C:16]([N:19]4[C:24](=[O:25])[CH:23]=[C:22]([C:26]([F:29])([F:28])[F:27])[N:21]([CH3:30])[C:20]4=[O:31])[CH:17]=[CH:18][C:13]=3[S:12][N:11]=2)=[CH:5][CH:4]=1
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참가 물질

4

반응물 2

HCID 25134Boron tribromideHCID 700990583-[3-(6-Methoxy-m-tolyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione

생성물 1

HCID 1363337203-[3-(6-Hydroxy-m-tolyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione수율 98.1%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

A solution of 3-[3-(6-methoxy-m-tolyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione (111 g, 0.248 mol) in methylene chloride is cooled to -5° C., treated over one hour with a 1 M solution of boron tribromide in methylene chloride (322 mL, 0.322 mol), stirred for one hour, washed sequentially with water and brine, dried over anhydrous magnesium sulfate, and concentrated in vacuo to give the title product as a yellow solid (105 g, 98.1%) which is identified by NMR spectral analyses.

후처리

  1. washwashed sequentially with water and brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-feac231dc6f44ceb9d01d9905e26d745
출처 데이터셋
uspto-grants-2000_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06156700

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