2-Bromonaphthalene → HCID 57589727, compound

HRID 1783286Notes

Reaction equation

HRID 1783286 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[CH:7][CH:6]=[CH:5]2.Br[C:13]1[CH:22]=[CH:21][C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=1.CC(C)([O-])C.[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(C)C=CC=CC=1>[CH:19]1[C:20]2[C:15](=[CH:14][CH:13]=[CH:22][CH:21]=2)[CH:16]=[CH:17][C:18]=1[NH:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH2:7][CH2:6][CH2:5]2

Participants

7

Reactant 3

HCID 113722-BromonaphthaleneHCID 113736-AminoquinolineHCID 23676156Sodium t-butoxide

Product 1

HCID 57589727HCID 57589727, compoundYield 70.9%

Reagents, catalysts & solvents 3

HCID 634876Binap, (A+-)-CatalystHCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Procedure

To a flask equipped with a magnetic stirrer, reflux condensor, and nitrogen inlet was added 6-aminoquinoline (6.69 grams, 46.4 mmoles), 2-bromonapthalene (9.15 grams, 44.2 mmoles), tris(dibenzylideneacetone)dipalladium (0) (0.80 grams, 0.87 mmoles), rac-2,2′-bis(diphenylphosphino)-1,1′-binapthyl (1.10 grams, 1.77 mmoles), sodium tert-butoxide (8.49 grams, 88.3 mmoles) and anhydrous toluene (90 mL). The contents of the flask were refluxed for five hours; cooled to room temperature; and filtered through a pad of silica gel. The silica gel pad was then eluted with tetrahydrofuran (135 mL). The combined organic layers were concentrated in vacuo to yield a brown solid. The solid was recrystallized from ethanol to afford 8.6 grams of the desired product as a yellow solid. 1H NMR (DMSO-d6/D2O) δ 8.9 (d, 1H), 8.65 (d, 1H), 8.2 (d, 1H), 7.25-8.05 (m, 10H).

Workup

  1. customTo a flask equipped with a magnetic stirrer
  2. temperaturereflux condensor, and nitrogen inlet
  3. temperatureThe contents of the flask were refluxed for five hours
  4. filtrationand filtered through a pad of silica gel
  5. washThe silica gel pad was then eluted with tetrahydrofuran (135 mL)
  6. concentrationThe combined organic layers were concentrated in vacuo
  7. customto yield a brown solid
  8. customThe solid was recrystallized from ethanol

Sources & evidence

ORD record
ord-3f06d3551e324d909cd31afe338b56fc
Source dataset
uspto-grants-2009_03
Patent number
US07501386B2

Reaction notes

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