Toluene → HCID 68435567, compound

HRID 1797406Notes

Reaction equation

C1(C)C=CC=CC=1.Br[C:9]1[C:10]([CH3:29])=[C:11]([CH3:28])[C:12]2[O:16][C:15]([CH3:18])([CH3:17])[CH:14]([C:19]3[CH:24]=[CH:23][C:22]([CH3:25])=[CH:21][CH:20]=3)[C:13]=2[C:26]=1[CH3:27].[CH3:30][O:31][C:32]1[CH:33]=[C:34]([CH:37]=[CH:38][C:39]=1[O:40][CH3:41])[CH2:35][NH2:36].CC(C)([O-])C.[Na+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1C=CC(P(C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(OCC)(=O)C>[CH3:30][O:31][C:32]1[CH:33]=[C:34]([CH:37]=[CH:38][C:39]=1[O:40][CH3:41])[CH2:35][NH:36][C:9]1[C:10]([CH3:29])=[C:11]([CH3:28])[C:12]2[O:16][C:15]([CH3:18])([CH3:17])[CH:14]([C:19]3[CH:24]=[CH:23][C:22]([CH3:25])=[CH:21][CH:20]=3)[C:13]=2[C:26]=1[CH3:27]

Participants

Conditions

Temperature: 80 °C

Procedure

Under a nitrogen atmosphere, to toluene (1 mL) were added 5-bromo-2,2,4,6,7-pentamethyl-3-(4-methylphenyl)-2,3-dihydro-1-benzofuran (100 mg) and 3,4-dimethoxybenzylamine (56 mg), then palladium acetate (0.3 mg) and (S)-(−)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (2.7 mg), and further sodium tert-butoxide (37.5 mg). The mixture was stirred at 80° C. for 17 hours. Ethyl acetate was added to the reaction mixture, insoluble materials were filtered and the filtrate was concentrated under reduced pressure. The residue was subjected to silica gel column chromatography, which was eluted with ethyl acetate-n-hexane [1:4], to obtain the title compound (80 mg, 64.5%).

Workup

filtrationwere filtered
concentrationthe filtrate was concentrated under reduced pressure
washwas eluted with ethyl acetate-n-hexane [1:4]

Sources & evidence

ORD record: ord-30d56ed473d34e5b882c7ca65f4fdcda
Source dataset: uspto-grants-2006_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07034166B2

Reaction notes

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