Potassium Carbonate → methyl 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate

HRID 1928955ノート

反応式

HRID 1928955 の反応式
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:13]([CH2:14][CH:15]([CH3:17])[CH3:16])[CH2:12][CH2:11][CH2:10][CH2:9][C:8]([C:18]([O:20][CH3:21])=[O:19])=[CH:7][C:6]=2[CH:22]=1.[CH2:23]([O:27][CH2:28][CH2:29][O:30][C:31]1[CH:36]=[CH:35][C:34](OB(O)O)=[CH:33][CH:32]=1)[CH2:24][CH2:25][CH3:26].C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.C(O)C.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:23]([O:27][CH2:28][CH2:29][O:30][C:31]1[CH:32]=[CH:33][C:34]([C:2]2[CH:3]=[CH:4][C:5]3[N:13]([CH2:14][CH:15]([CH3:17])[CH3:16])[CH2:12][CH2:11][CH2:10][CH2:9][C:8]([C:18]([O:20][CH3:21])=[O:19])=[CH:7][C:6]=3[CH:22]=2)=[CH:35][CH:36]=1)[CH2:24][CH2:25][CH3:26]

参加物

8

反応物 3

HCID 11430Potassium CarbonateHCID 230910874-(2-Butoxyethoxy)phenylboric acidHCID 68650366methyl 9-bromo-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate

生成物 1

HCID 68649753methyl 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate収率 98.2%

試薬・触媒・溶媒 4

HCID 178418397HCID 178418397、化合物触媒HCID 702Ethanol溶媒HCID 962Water溶媒2 回HCID 1140Toluene溶媒

実験手順

A suspension of methyl 9-bromo-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate (2.1 g) and 4-(2-butoxyethoxy)phenyl boric acid (1.77 g) and potassium carbonate (2.06 g) in toluene (25 ml), ethanol (2.5 ml) and water (2.5 ml) was stirred under argon atmosphere for 1 hour, and then tetrakis(triphenylphosphine)palladium (332 mg) was added. The mixture was refluxed for 5 hours. After returning to room temperature, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried with magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1→hexane:ethyl acetate=9:1) to give methyl 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate (2.7 g) as a yellow oily material.

後処理

  1. temperatureThe mixture was refluxed for 5 hours
  2. customAfter returning to room temperature
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried with magnesium sulfate
  6. distillationThe solvent was distilled off under reduced pressure
  7. customthe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1→hexane:ethyl acetate=9:1)

出典と根拠

ORDレコード
ord-ba15d71711c948469ea75a9b5785fb73
出典データセット
uspto-grants-2012_05
特許番号
US08183273B2

反応ノート

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