Diethyl Malonate → HCID 67050763, compound

HRID 1498435Notes

Reaction equation

Br[C:2]1[CH:23]=[CH:22][C:5]2[C:6]3[N:7]([CH:11]=[C:12]([C:14]4[N:18]([CH:19]([CH3:21])[CH3:20])[N:17]=[CH:16][N:15]=4)[N:13]=3)[CH2:8][CH2:9][O:10][C:4]=2[CH:3]=1.[C:24]([O:32][CH2:33][CH3:34])(=[O:31])[CH2:25][C:26]([O:28][CH2:29][CH3:30])=[O:27].C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2N(C)C)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH:19]([N:18]1[C:14]([C:12]2[N:13]=[C:6]3[C:5]4[CH:22]=[CH:23][C:2]([CH:25]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[C:24]([O:32][CH2:33][CH3:34])=[O:31])=[CH:3][C:4]=4[O:10][CH2:9][CH2:8][N:7]3[CH:11]=2)=[N:15][CH:16]=[N:17]1)([CH3:21])[CH3:20]

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 9-bromo-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine 194 (1410 mg (3.77 mmol), diethyl malonate (2.00 mL (13.2 mmol), palladium (II) acetate (42.3 mg, 0.188 mmol), 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (148 mg, 0.377 mmol) and potassium phosphate (2.80 g, 13.2 mmol) in 6.0 ml of 1,4-Dioxane was degassed and heated for 24 hours at 100° C. The mixture was concentrated in vacuum and the residue purified on 24 g silica column eluting with 1% of MeOH in EtOAc to give diethyl 2-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)malonate. Yield 974 mg. M/z 454.3, calc. 453.20

Workup

customwas degassed
concentrationThe mixture was concentrated in vacuum
customthe residue purified on 24 g silica column
washeluting with 1% of MeOH in EtOAc

Sources & evidence

ORD record: ord-09bb41d088a743d09220fcc2a0acc36b
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09198918B2

Reaction notes

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