Ethanesulfonylchloride, 2-chloro- → 9-{[4-(1-Methylethyl)phenyl]ethynyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 1622594Notes

Reaction equation

HRID 1622594 reaction equation
[CH3:1][CH:2]([C:4]1[CH:9]=[CH:8][C:7]([C:10]#[C:11][C:12]2[C:13]([NH2:18])=[N:14][CH:15]=[CH:16][CH:17]=2)=[CH:6][CH:5]=1)[CH3:3].[H-].[Na+].Cl[CH2:22][CH2:23][S:24](Cl)(=[O:26])=[O:25].C(=O)([O-])O.[Na+]>C1COCC1.C(OCC)(=O)C>[CH3:3][CH:2]([C:4]1[CH:5]=[CH:6][C:7]([C:10]#[C:11][C:12]2[C:13]3=[N:18][S:24](=[O:26])(=[O:25])[CH2:23][CH2:22][N:14]3[CH:15]=[CH:16][CH:17]=2)=[CH:8][CH:9]=1)[CH3:1]

Participants

7

Reactant 4

HCID 15385Ethanesulfonylchloride, 2-chloro-HCID 24758Sodium hydrideHCID 516892Sodium BicarbonateHCID 667477103-{[4-(1-Methylethyl)phenyl]ethynyl}pyridin-2-amine

Product 1

HCID 667484839-{[4-(1-Methylethyl)phenyl]ethynyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideYield 53.1%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 3-{[4-(1-methylethyl)phenyl]ethynyl}pyridin-2-amine (150 mg) in dehydrated THF (5 mL) was added to a mixture of sodium hydride (60%, 127 mg) and 2-chloroethanesulfonyl chloride (310 mg) in dehydrated THF (5 mL) under ice-cooling. The reaction mixture was stirred at room temperature for 2 hr, and saturated aqueous sodium hydrogen carbonate solution and ethyl acetate were added. The resulting precipitate was collected by filtration, and washed with water and ethyl acetate to give the title compound (110 mg) as a white solid. The obtained solid was crystallized from acetonitrile and diisopropyl ether to give 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-bae536a6269b43dc893bd8192c92e7d0
Source dataset
uspto-grants-2014_07
Patent number
US08778934B2

Reaction notes

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