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

HRID 2035738Notes

Reaction equation

HRID 2035738 reaction equation
[C:1]1([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:6]=[CH:5][C:4]([C:7]2[C:8]([NH2:13])=[N:9][CH:10]=[CH:11][CH:12]=2)=[CH:3][CH:2]=1.[H-].[Na+].Cl[CH2:23][CH2:24][S:25](Cl)(=[O:27])=[O:26].O>C1COCC1.CCCCCC>[C:1]1([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:6]=[CH:5][C:4]([C:7]2[C:8]3=[N:13][S:25](=[O:27])(=[O:26])[CH2:24][CH2:23][N:9]3[CH:10]=[CH:11][CH:12]=2)=[CH:3][CH:2]=1

Participants

7

Reactant 4

HCID 962WaterHCID 15385Ethanesulfonylchloride, 2-chloro-HCID 24758Sodium hydrideHCID 654549503-Biphenyl-4-ylpyridin-2-amine

Product 1

HCID 667489979-Biphenyl-4-yl-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideYield 68.2%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8058HexaneSolvent

Procedure

A mixture of 3-biphenyl-4-ylpyridin-2-amine (700 mg) in dehydrated THF (30 mL) was added to a mixture of sodium hydride (60%, 568 mg) and 2-chloroethanesulfonyl chloride (1390 mg) in dehydrated THF (30 mL) under ice-cooling. The reaction mixture was stirred at room temperature overnight, and water and hexane were added. The resulting precipitate was collected by filtration, and washed with water and ethyl acetate to give the title compound (652 mg) as a white solid.

Workup

  1. temperaturecooling
  2. filtrationThe resulting precipitate was collected by filtration
  3. washwashed with water and ethyl acetate

Sources & evidence

ORD record
ord-658008420c9a43c78cf019a112988c70
Source dataset
uspto-grants-2013_11
Patent number
US08575154B2

Reaction notes

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