Water → HCID 10586886, compound
Reaction equation
Cl[C:2]1[CH:3]=[C:4]([CH:13]=[CH:14][C:15]=1[N+:16]([O-:18])=[O:17])[C:5]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:6].[Cu][C:20]#[N:21].O.C(OCC)(=O)C>CN(C=O)C.C1(C)C=CC=CC=1>[C:20]([C:2]1[CH:3]=[C:4]([CH:13]=[CH:14][C:15]=1[N+:16]([O-:18])=[O:17])[C:5]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:6])#[N:21]Participants
Conditions
- Temperature
- 67.5 °C
Procedure
A stirred mixture of 3-chloro-4-nitrobenzophenone (5.00 g), (J. Org. Chem., 1962, 27, 1605-1608), and copper(I)cyanide (2.57 g) in DMF (50 ml) was heated at reflux for 16 hours. The hot reaction mixture was then poured into a stirred solution of ferric chloride (15.30 g) concentrated hydrochloric acid (5 ml) and water (200 ml). The mixture was heated at 65-70° C. for 30 minutes, cooled to ambient temperature treated with ethyl acetate (250 ml) and stirred vigorously for 5 minutes. The organic phase was separated and the aqueous layer extracted with another 250 ml portion of ethyl acetate. The combined organics were dried, filtered and evaporated to give a brown oil. Chromatography (eluent toluene) gave the title compound (2.77 g) as a yellow solid. M.p. 117-119° C.; EA C14H8N2O3 requires C, 66.67; H, 3.02; N, 11.11%; found: C, 66.83; H, 2.99; N, 11.12%.
Workup
- temperaturewas heated
- temperatureat reflux for 16 hours
- temperaturecooled to ambient temperature
- customThe organic phase was separated
- extractionthe aqueous layer extracted with another 250 ml portion of ethyl acetate
- customThe combined organics were dried
- filtrationfiltered
- customevaporated
- customto give a brown oil
Sources & evidence
- ORD record
- ord-e1e8303fdc714f33b8368fbb91695c6b
- Source dataset
- uspto-grants-2002_04
- Patent number
- US06369273B1
Reaction notes
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