Ethanol → HCID 68580608, compound

HRID 886919Notes

Reaction equation

Br[C:2]1[C:12]2[O:11][CH2:10][CH2:9][N:8]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.[CH2:20](O)[CH3:21].C(=O)([O-])[O-].[Na+].[Na+].O>C1(C)C=CC=CC=1.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>[CH:21]12[CH2:20][CH:3]([CH2:4][CH2:5]1)[CH:2]=[C:12]2[C:2]1[C:12]2[O:11][CH2:10][CH2:9][N:8]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 95 °C

Procedure

A mixture of tert-butyl 9-bromo-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (594 mg, 1.81 mmol), bicyclo[2.2.1]-2-hepten-2-ylboronic acid (250 mg, 1.81 mmol), ethanol (2 ml), 2N aqueous sodium carbonate solution (10 ml), and tetrakis(triphenylphosphine)palladium(0) (253 mg, 0.219 mmol) in toluene (20 ml) was stirred under a nitrogen atmosphere at 95° C. for 12 hr. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to give the desired product (282 mg, 45.6%) as an oil.

Workup

extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with water
dry with materialdried over anhydrous magnesium sulfate
customThe solvent was evaporated under reduced pressure
customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record: ord-de51bb62a4414a0699a656c4b876a210
Source dataset: uspto-grants-2012_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08247403B2

Reaction notes

Loading…