Dimethylformamide → HCID 19874055, compound

HRID 1090088Notes

Reaction equation

HRID 1090088 reaction equation
[C:1]([C:4]1[CH:5]=[C:6]([N+:22]([O-:24])=O)[C:7]([NH:14][C:15]([C:17](OCC)=[O:18])=[O:16])=[C:8]2[C:13]=1[CH2:12][CH2:11][CH2:10][CH2:9]2)(=[O:3])[CH3:2].CN(C)C=O>C(O)C.[Pt]>[C:1]([C:4]1[C:13]2[CH2:12][CH2:11][CH2:10][CH2:9][C:8]=2[C:7]2[NH:14][C:15](=[O:16])[C:17](=[O:18])[N:22]([OH:24])[C:6]=2[CH:5]=1)(=[O:3])[CH3:2]

Participants

5

Reactant 2

HCID 6228DimethylformamideHCID 19027064HCID 19027064, compound

Product 1

HCID 19874055HCID 19874055, compoundYield 73%

Reagents, catalysts & solvents 2

HCID 23939PlatinumCatalystHCID 702EthanolSolvent

Procedure

A solution of 8-acetyl-5-ethoxalylamino-1,2,3,4-tetrahydro-6-nitronaphthalene (0.67 g, 2 mmol) in 100 ml of ethanol was hydrogenated at room temperature and atmospheric pressure over 50 mg of 5% platinum on carbon for 1 h. Then 50 ml of N,N-dimethylformamide was added to dissolve the precipitated solid, and the catalyst was removed by filtration. The filtrate was concentrated and the residue was washed with 50 ml of ethanol to give 0.40 g (73%) of the title compound. M.p. >200° C. decomp. (DSC); IR (KBr): 1709, 1677 cm-1, 1H-NMR (DMSO-d6): 1.43-1.93 (m, 4H, 2CH2), 2.57 (s, 3H, COCH3), 2.53-3.07 (m, 4H, 2CH2), 7.57 (s, 1H, H-7), 11.4 (very broad s, 2H, OH and NH); MS (m/e: 274 (M+, 100%).

Workup

  1. customwas hydrogenated at room temperature
  2. dissolutionto dissolve the precipitated solid
  3. customthe catalyst was removed by filtration
  4. concentrationThe filtrate was concentrated
  5. washthe residue was washed with 50 ml of ethanol

Sources & evidence

ORD record
ord-fd449fd5d145459984b0b34832c506e0
Source dataset
uspto-grants-1992_01
Patent number
US05081123

Reaction notes

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