Pyridine → HCID 57705811, compound

HRID 2098902Notes

Reaction equation

C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Br:20]Br.[CH3:22][C:23]1([CH3:45])[C:27]([C:28]2[CH:33]=[C:32]([CH2:34]O)[CH:31]=[CH:30][C:29]=2[C:36]2[CH:41]=[C:40]([O:42][CH3:43])[CH:39]=[CH:38][C:37]=2[F:44])=[CH:26][CH2:25][CH2:24]1.N1C=CC=CC=1>C(Cl)Cl>[Br:20][CH2:34][C:32]1[CH:31]=[CH:30][C:29]([C:36]2[CH:41]=[C:40]([O:42][CH3:43])[CH:39]=[CH:38][C:37]=2[F:44])=[C:28]([C:27]2[C:23]([CH3:45])([CH3:22])[CH2:24][CH2:25][CH:26]=2)[CH:33]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of triphenylphosphine (0.13 g, 0.51 mmol) in DCM (1.0 mL), was slowly added bromine (0.081 g, 0.51 mmol, 0.25 mL, 2M in CCl4) at 0° C. The resulting mixture was stirred at 0° C. for 15 minutes and then a mixture of compound T1.7 (0.15 g, 0.46 mmol) and anhydrous pyridine (0.041 mL, 0.51 mmol) in DCM (3.0 mL) was added to the mixture. The reaction mixture was stirred at room temperature for 2 hours. DCM (80 mL) was added, and the mixture was washed with water (20×2 mL), and dried over Na2SO4. The solvent was removed under reduced pressure to provide product T1.8. 1H NMR (400 MHz, CDCl3) δ ppm. 7.16-7.29 (m, 3H), 6.88 (t, 1H), 6.72 (m, 2H), 5.45 (s, 1H), 4.46 (s, 2H), 3.68 (s, 3H), 2.16-2.19 (m, 2H), 1.59 (t, 2H), 0.78 (s, 6H).

Workup

customat 0° C
additionwas added to the mixture
stirringThe reaction mixture was stirred at room temperature for 2 hours
washthe mixture was washed with water (20×2 mL)
dry with materialdried over Na2SO4
customThe solvent was removed under reduced pressure
customto provide product T1.8

Sources & evidence

ORD record: ord-552f9b5cf1054db9975420cc6ca4f0d0
Source dataset: uspto-grants-2013_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08450522B2

Reaction notes

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