Potassium Carbonate → 6-(3-fluorophenyl)-4,4-dimethyl-3,4-dihydroquinoline-2(1H)-one

HRID 2300120Notes

Reaction equation

HRID 2300120 reaction equation
[F:1][C:2]1[CH:3]=[C:4](B(O)O)[CH:5]=[CH:6][CH:7]=1.Br[C:12]1[CH:13]=[C:14]2[C:19](=[CH:20][CH:21]=1)[NH:18][C:17](=[O:22])[CH2:16][C:15]2([CH3:24])[CH3:23].C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.O.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>[F:1][C:2]1[CH:3]=[C:4]([C:12]2[CH:13]=[C:14]3[C:19](=[CH:20][CH:21]=2)[NH:18][C:17](=[O:22])[CH2:16][C:15]3([CH3:24])[CH3:23])[CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 27339863-Fluorophenylboronic acidHCID 107295896-bromo-4,4-dimethyl-3,4-dihydroquinolin-2(1H)-one

Product 1

HCID 99433246-(3-fluorophenyl)-4,4-dimethyl-3,4-dihydroquinoline-2(1H)-one

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

Prepared by coupling 3-fluorophenylboronic acid with an equivalent amount of 6-bromo-4,4-dimethyl-3,4-dihydro-1H-quinolin-2-one using a catalytic amount of tetrakis(triphenylphosphine)palladium(0) with overnight refluxing in toluene containing an equivalent amount of potassium carbonate dissolved in water. Work up in the usual manner followed by recrystallization from ethanol gave a grey solid: mp 190-192° C. 1H-NMR (DMSO-d6) δ 10.27 (s, 1H), 7.57 (s, 1H), 7.50 (m, 4H), 7.15 (m, 1H), 6.95 (d, 1H J=8.2 Hz), 2.39 (s, 2H), 1.29 (s, 6H); MS (APCI (−)) m/z 268 [M−H]− Anal. Calc. For C17H16FNO 0.25 H2O: C, 74.57, H, 6.07, N, 5.12. Found: C, 74.86, H, 5.97, N 5.06.

Workup

  1. customPrepared
  2. customwith overnight
  3. customfollowed by recrystallization from ethanol
  4. customgave a grey solid

Sources & evidence

ORD record
ord-bfd8fba8860a467597b691a77f7a2032
Source dataset
uspto-grants-2002_12
Patent number
US06498154B1

Reaction notes

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