Benzylamine → Ethyl 5-benzylamino-1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate

HRID 477011Notes

Reaction equation

HRID 477011 reaction equation
[CH:1]1([N:4]2[C:13]3[C:8](=[C:9](F)[C:10]([F:16])=[C:11]([F:15])[C:12]=3[F:14])[C:7](=[O:18])[C:6]([C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:5]2)[CH2:3][CH2:2]1.[CH2:24]([NH2:31])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:24]([NH:31][C:9]1[C:10]([F:16])=[C:11]([F:15])[C:12]([F:14])=[C:13]2[C:8]=1[C:7](=[O:18])[C:6]([C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:5][N:4]2[CH:1]1[CH2:2][CH2:3]1)[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1

Participants

5

Reactant 3

HCID 7504BenzylamineHCID 11430Potassium CarbonateHCID 9996650Ethyl 1-cyclopropyl-5,6,7,8-tetrafluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylate

Product 1

HCID 14127984Ethyl 5-benzylamino-1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of ethyl 1-cyclopropyl-5,6,7,8-tetrafluor-1,4-dihydro-4-oxoquinoline-3-carboxylate (28.2 g) prepared in Referential Example 1 (2), benzylamine (9.8 ml), anhydrous potassium carbonate (23.6 g), and acetonitrile (140 ml) was heated at 100°-110° C. for 1 hour to give ethyl 5-benzylamino-1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline3-carboxylate (21.4 g), which was recrystallized from ethanol, m.p. 134°-135° C.

Workup

  1. temperaturewas heated at 100°-110° C. for 1 hour

Sources & evidence

ORD record
ord-c9937db3468d4ec89543dcc5c1f8fdde
Source dataset
uspto-grants-1989_12
Patent number
US04886810

Reaction notes

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