Acetic Anhydride → N-[2-(6,7-Dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethyl]acetamide

HRID 883226노트

반응식

HRID 883226 반응식
[O:1]1[C:5]2[C:6]3[C:7](=[CH:13][CH2:14][NH2:15])[CH2:8][CH2:9][C:10]=3[CH:11]=[CH:12][C:4]=2[N:3]=[CH:2]1.C(N(CC)CC)C.[C:23](OC(=O)C)(=[O:25])[CH3:24].C(=O)([O-])O.[Na+]>O1CCCC1>[O:1]1[C:5]2[C:6]3[C:7](=[CH:13][CH2:14][NH:15][C:23](=[O:25])[CH3:24])[CH2:8][CH2:9][C:10]=3[CH:11]=[CH:12][C:4]=2[N:3]=[CH:2]1

참가 물질

6

반응물 4

HCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 673539192-(6,7-Dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethanamine

생성물 1

HCID 67353942N-[2-(6,7-Dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethyl]acetamide수율 53%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

2-(6,7-Dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethanamine (30.0 mg, 0.148 mmol) was dissolved in tetrahydrofuran (1 mL), triethylamine (31.0 μL, 0.222 mmol) and acetic anhydride (16.8 μL, 0.178 mmol) were added under ice-cooling, and the mixture was stirred for 15 min. To the reaction solution was added saturated aqueous sodium hydrogencarbonate solution, and the mixture was extracted with ethyl acetate and washed with saturated brine. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/methanol=100/0→95/5) to give the title compound (19.0 mg, yield 53%).

후처리

  1. temperaturecooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washwashed with saturated brine
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (ethyl acetate/methanol=100/0→95/5)

출처 및 근거

ORD 기록
ord-80ff3889b7834ca79464cf37b5eba2c2
출처 데이터셋
uspto-grants-2012_08
특허 번호
US08236837B2

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