Hydrochloric Acid → HCID 51000409, compound

HRID 78560Notes

Reaction equation

HRID 78560 reaction equation
[NH2:1][C:2]1[C:3]([C:18]([O:20]C)=[O:19])=[N:4][C:5]([C:8]2[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][CH:9]=2)=[CH:6][N:7]=1.[Li+].[OH-].O.Cl>CO>[NH2:1][C:2]1[C:3]([C:18]([OH:20])=[O:19])=[N:4][C:5]([C:8]2[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][CH:9]=2)=[CH:6][N:7]=1

Participants

6

Conditions

Temperature
90 °C

Procedure

A mixture of methyl 3-amino-6-(4-(methylsulfonyl)phenyl)pyrazine-2-carboxylate (3.50 g, 11.39 mmol) and LiOH (1.364 g, 56.95 mmol) was dissolved in Methanol (14 mL) and water (14 ml) and allowed to heat at 90° C. for 2 hours. The reaction mixture was allowed to cool and neutralized with 1M HCl. The resultant precipitate was collected by filtration to afford the pure product as a yellow solid (3.32 g, 99% Yield). MS (ES+) 293

Workup

  1. temperatureto cool
  2. filtrationThe resultant precipitate was collected by filtration

Sources & evidence

ORD record
ord-113509370dec4c6aa1cb664fa75ed11d
Source dataset
uspto-grants-2014_09
Patent number
US08841308B2

Reaction notes

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