Trimethyl orthoformate → 2-(1,1-Dimethoxyethyl)-3-phenylthiophene

HRID 2267401노트

반응식

HRID 2267401 반응식
[C:1]1([C:7]2[CH:8]=[C:9](C(=O)C)[S:10][CH:11]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:15][O:16][CH:17](OC)[O:18][CH3:19].O.[C:23]1(C)C=CC(S(O)(=O)=O)=CC=1>CO>[CH3:15][O:16][C:17]([C:11]1[S:10][CH:9]=[CH:8][C:7]=1[C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)([O:18][CH3:19])[CH3:23]

참가 물질

5

반응물 3

HCID 9005Trimethyl orthoformateHCID 521998p-Toluenesulfonic acid monohydrateHCID 135416931-(4-Phenylthiophen-2-yl)ethan-1-one

생성물 1

HCID 574288492-(1,1-Dimethoxyethyl)-3-phenylthiophene

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

1-(4-Phenylthiophen-2-yl)ethanone (1.33 g, 6.57 mmol) was dissolved in MeOH and treated with trimethylorthoformate (1.44 mL, 13.2 mmol) and p-toluenesulfonic acid monohydrate (0.050 g). The resulting solution was stirred at ambient temperature for 16 h at which time the solution was partitioned between Et2O and saturated aqueous NaHCO3 solution. The organic phase was separated and washed with two portions of water and three portions of brine, then dried over Na2SO4 and concentrated in vacuo. The resulting white semi-solid was used without further purification. MS (M+H)+ 249.

후처리

  1. customwas partitioned between Et2O and saturated aqueous NaHCO3 solution
  2. customThe organic phase was separated
  3. washwashed with two portions of water and three portions of brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe resulting white semi-solid was used without further purification

출처 및 근거

ORD 기록
ord-99115ea0a9ef41b2ba056f0da4e129e1
출처 데이터셋
uspto-grants-2010_12
특허 번호
US07858785B2

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