Benzophenone imine → 5-(4-Aminophenyl)-1H-naphtho[1,2-e][1,4]diazepin-2(3H)-one

HRID 1049726Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]3[CH:23]=[CH:22][C:21]4[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=4)[C:10]=3[NH:11][C:12](=[O:15])[CH2:13][N:14]=2)=[CH:4][CH:3]=1.C(=[NH:37])(C1C=CC=CC=1)C1C=CC=CC=1.CC(C)([O-])C.[Na+].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O>[NH2:37][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]3[CH:23]=[CH:22][C:21]4[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=4)[C:10]=3[NH:11][C:12](=[O:15])[CH2:13][N:14]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 110 °C

Procedure

5-(4-Bromophenyl)-1H-naphtho[1,2-e][1,4]diazepin-2(3H)-one (380 mg, 1.04 mmol), benzophenone imine (349 mg, 2.08 mmol), sodium tert-butoxide (200 mg, 2.08 mmol), palladium(II) acetate (23 mg, 0.104 mmol), and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (60 mg, 0.208 mmol) were dissolved in anhydrous dioxane (5 mL), and the solution was stirred at 110° C. for 16 hours. The reaction mixture was left to cool, and then poured into water, and the mixture was extracted with chloroform. The organic layer was washed with 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 (chloroform/methanol=100/1) to give the title compound (154 mg, yield 49%).

Workup

waitThe reaction mixture was left
temperatureto cool
extractionthe mixture was extracted with chloroform
washThe organic layer was washed with saturated brine
dry with materialdried over anhydrous sodium sulfate
customThe solvent was evaporated under reduced pressure
customthe residue was purified by silica gel column chromatography (chloroform/methanol=100/1)

Sources & evidence

ORD record: ord-ea149f5def7f45a48093cad40dab91ad
Source dataset: uspto-grants-2016_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09382236B2

Reaction notes

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