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Potassium Carbonate → HCID 69425322, compound

HRID 1182361
Notes
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Reaction equation

HRID 1182361 reaction equation
Br[C:2]1[CH:21]=[N:20][C:5]2[N:6]([CH2:16][CH:17]([CH3:19])[CH3:18])[CH2:7][CH2:8][CH2:9][C:10]([C:12]([O:14][CH3:15])=[O:13])=[CH:11][C:4]=2[CH:3]=1.[CH2:22]([O:26][CH2:27][CH2:28][O:29][C:30]1[CH:35]=[CH:34][C:33](OB(O)O)=[CH:32][CH:31]=1)[CH2:23][CH2:24][CH3:25].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>[CH2:22]([O:26][CH2:27][CH2:28][O:29][C:30]1[CH:31]=[CH:32][C:33]([C:2]2[CH:21]=[N:20][C:5]3[N:6]([CH2:16][CH:17]([CH3:19])[CH3:18])[CH2:7][CH2:8][CH2:9][C:10]([C:12]([O:14][CH3:15])=[O:13])=[CH:11][C:4]=3[CH:3]=2)=[CH:34][CH:35]=1)[CH2:23][CH2:24][CH3:25]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 230910874-(2-Butoxyethoxy)phenylboric acidHCID 69425256Methyl 3-bromo-10-isobutyl-7,8,9,10-tetrahydropyrido[2,3-b]azocine-6-carboxylate

Product 1

HCID 69425322HCID 69425322, compoundYield 79.3%

Reagents, catalysts & solvents 4

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 702EthanolSolvent
HCID 962WaterSolvent2×
HCID 1140TolueneSolvent

Conditions

Temperature
115 °C

Procedure

A suspension of methyl 3-bromo-10-isobutyl-7,8,9,10-tetrahydropyrido[2,3-b]azocine-6-carboxylate (690 mg), 4-(2-butoxyethoxy)phenylboric acid (605 mg) and potassium carbonate (702 mg) in toluene (15 ml), ethanol (1.5 ml) and water (1.5 ml) was stirred under an argon atmosphere for 30 minutes. Tetrakis(triphenylphosphine)palladium (113 mg) was added thereto, and the mixture was heated at 115° C. for 5 hours under an argon atmosphere. The solution was allowed to cool. Water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over 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=4:1) to give methyl 3-[4-(2-butoxyethoxy)phenyl]-10-isobutyl-7,8,9,10-tetrahydropyrido[2,3-b]azocine-6-carboxylate (723 mg) as a yellow oily material.

Workup

  1. temperatureto cool
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1→hexane:ethyl acetate=4:1)

Sources & evidence

ORD record
ord-5648f37d24994052b33be747ae83e4e4
Source dataset
uspto-grants-2007_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07288654B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes