Water → 9-(2-Fluorobiphenyl-4-yl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 1622634Notes

Reaction equation

HRID 1622634 reaction equation
[H-].[Na+].Cl[CH2:4][CH2:5][S:6](Cl)(=[O:8])=[O:7].[F:10][C:11]1[CH:16]=[C:15]([C:17]2[C:18]([NH2:23])=[N:19][CH:20]=[CH:21][CH:22]=2)[CH:14]=[CH:13][C:12]=1[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.O>C1COCC1.CCCCCC>[F:10][C:11]1[CH:16]=[C:15]([C:17]2[C:18]3=[N:23][S:6](=[O:8])(=[O:7])[CH2:5][CH2:4][N:19]3[CH:20]=[CH:21][CH:22]=2)[CH:14]=[CH:13][C:12]=1[C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1

Participants

7

Reactant 4

HCID 962WaterHCID 15385Ethanesulfonylchloride, 2-chloro-HCID 24758Sodium hydrideHCID 667488543-(2-Fluorobiphenyl-4-yl)pyridin-2-amine

Product 1

HCID 667488159-(2-Fluorobiphenyl-4-yl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideYield 54%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8058HexaneSolvent

Procedure

To a suspension of 60% sodium hydride (0.76 g) in THF (20 mL) was added 2-chloroethanesulfonyl chloride (1.85 g) under ice-cooling. The reaction mixture was stirred under ice-cooling for 5 min, and a solution of 3-(2-fluorobiphenyl-4-yl)pyridin-2-amine (1.0 g) in THF (20 mL) was added. The reaction mixture was stirred at room temperature overnight, and water and hexane were added under ice-cooling. The resulting solid was collected by filtration, washed with ethyl acetate, and dried under reduced pressure to give the title compound (0.724 g).

Workup

  1. temperaturecooling
  2. temperaturecooling for 5 min
  3. stirringThe reaction mixture was stirred at room temperature overnight
  4. temperaturecooling
  5. filtrationThe resulting solid was collected by filtration
  6. washwashed with ethyl acetate
  7. customdried under reduced pressure

Sources & evidence

ORD record
ord-9982f374a8ba4e5cad15d925752fa73c
Source dataset
uspto-grants-2014_07
Patent number
US08778934B2

Reaction notes

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