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Ethanol → HCID 21947806, compound

HRID 2215150
Notes
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Reaction equation

HRID 2215150 reaction equation
Cl[C:2]1[N:7]=[CH:6][C:5]([C:8]([N:10]2[C:16]3[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=3[CH2:14][N:13]3[CH:21]=[CH:22][CH:23]=[C:12]3[CH2:11]2)=[O:9])=[CH:4][CH:3]=1.[C:24]1(B(O)O)[C:33]2[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=2)[CH:27]=[CH:26][CH:25]=1.C(O)C.C(=O)([O-])[O-].[Na+].[Na+]>C1(C)C=CC=CC=1.C(OCC)(=O)C.O.C([O-])(=O)C.[Pd+]>[C:32]1([C:2]2[N:7]=[CH:6][C:5]([C:8]([N:10]3[C:16]4[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=4[CH2:14][N:13]4[CH:21]=[CH:22][CH:23]=[C:12]4[CH2:11]3)=[O:9])=[CH:4][CH:3]=2)[C:33]2[C:28](=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH:29]=[CH:30][CH:31]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

9

Reactant 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 2545321-Naphthaleneboronic acidHCID 2194772510-[(6-Chloro-3-pyridinyl)carbonyl]-10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Product 1

HCID 21947806HCID 21947806, compoundYield 22.8%

Reagents, catalysts & solvents 4

HCID 178476740
HCID 178476740, compound
Catalyst
HCID 962WaterSolvent
HCID 1140TolueneSolvent
HCID 8857Ethyl AcetateSolvent

Procedure

A suspension of (6-chloro-pyridin-3-yl)-[10,11-dihydro-5H-pyrrolo{2,1-c][1,4]benzodiazepin-10-yl]methanone of Step A (0.645 g, 1.9 mmol) and naphthalene boronic acid (0.372 g, 2.1 mmol) in a mixture of toluene (1.2 mL), ethanol (2 mL) and 1M aqueous sodium carbonate (0.4 mL) was sparged with nitrogen for 10 minutes. To this was added palladium(I) acetate (0.026 g, 0.1 mmol). The mixture was heated at reflux under a static pressure of nitrogen for 48 hrs. The reaction was diluted with ethyl acetate and water. The organic layer was washed with saturated aqueous sodium bicarbonate then water. The sample was dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to a brown oil. Flash chromatography of the residue on silica gel eluting with 20–50% ethyl acetate in hexane, yielded 0.180 g of a solid which was recrystallized from chloroform to provide the title compound as off white crystals, m.p. 155–158° C.

Workup

  1. customwas sparged with nitrogen for 10 minutes
  2. temperatureThe mixture was heated
  3. temperatureat reflux under a static pressure of nitrogen for 48 hrs
  4. washThe organic layer was washed with saturated aqueous sodium bicarbonate
  5. dry with materialThe sample was dried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo to a brown oil

Sources & evidence

ORD record
ord-be7cb4cc0866419bb469cd2650b2eed2
Source dataset
uspto-grants-2006_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07109193B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes