Sulfuric acid magnesium salt (1:1) → N-[2-(7-Isopropyl-2-methyl-6H-indeno[5,4-d][1,3]oxazol-8-yl)ethyl]acetamide

HRID 883265ノート

反応式

HRID 883265 の反応式
O[C:2]1([CH2:18][CH2:19][NH:20][C:21](=[O:23])[CH3:22])[C:13]2[C:12]3[O:11][C:10]([CH3:14])=[N:9][C:8]=3[CH:7]=[CH:6][C:5]=2[CH2:4][CH:3]1[CH:15]([CH3:17])[CH3:16].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.S([O-])([O-])(=O)=O.[Mg+2]>C1(C)C=CC=CC=1.C(OCC)(=O)C>[CH:15]([C:3]1[CH2:4][C:5]2[CH:6]=[CH:7][C:8]3[N:9]=[C:10]([CH3:14])[O:11][C:12]=3[C:13]=2[C:2]=1[CH2:18][CH2:19][NH:20][C:21](=[O:23])[CH3:22])([CH3:17])[CH3:16]

参加物

6

反応物 3

HCID 24083Sulfuric acid magnesium salt (1:1)HCID 521998p-Toluenesulfonic acid monohydrateHCID 57781223N-[2-(8-Hydroxy-7-isopropyl-2-methyl-7,8-dihydro-6H-indeno[5,4-d][1,3]oxazol-8-yl)ethyl]acetamide

生成物 1

HCID 57781250N-[2-(7-Isopropyl-2-methyl-6H-indeno[5,4-d][1,3]oxazol-8-yl)ethyl]acetamide収率 61.2%

試薬・触媒・溶媒 2

HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
100 °C

実験手順

To a solution of N-[2-(8-hydroxy-7-isopropyl-2-methyl-7,8-dihydro-6H-indeno[5,4-d][1,3]oxazol-8-yl)ethyl]acetamide (132 mg, 0.417 mmol) in toluene (4.2 mL) were added p-toluenesulfonic acid monohydrate (396 mg, 2.08 mmol) and magnesium sulfate (1 g), and the mixture was stirred at 100° C. for 1 hr. The reaction solution was diluted with ethyl acetate, washed with saturated aqueous sodium hydrogencarbonate solution and saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane=30/70→100/0) to give the title compound (76.1 mg, yield 61%).

後処理

  1. washwashed with saturated aqueous sodium hydrogencarbonate solution and saturated brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane=30/70→100/0)

出典と根拠

ORDレコード
ord-239e1d56e31847a0ad15c2d304f286b3
出典データセット
uspto-grants-2012_08
特許番号
US08236837B2

反応ノート

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