Sodium borohydride → HCID 15290063, compound

HRID 1757393Notes

Reaction equation

HRID 1757393 reaction equation
[Br-].[CH3:2][O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]([CH2:12][N+:13]2[CH:18]=[CH:17][C:16]([C:19]3[S:20][CH2:21][C:22](=[O:25])[NH:23][N:24]=3)=[CH:15][CH:14]=2)=[O:11])=[CH:6][CH:5]=1.[BH4-].[Na+]>CO.O>[OH:11][CH:10]([C:7]1[CH:6]=[CH:5][C:4]([O:3][CH3:2])=[CH:9][CH:8]=1)[CH2:12][N:13]1[CH2:18][CH2:17][C:16]([C:19]2[S:20][CH2:21][C:22](=[O:25])[NH:23][N:24]=2)=[CH:15][CH2:14]1

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 15388729HCID 15388729, compound

Product 1

HCID 15290063HCID 15290063, compoundYield 77.3%

Reagents, catalysts & solvents 1

HCID 22242641Methanol--water (1/1)Solvent

Procedure

1-[(4-Methoxyphenyl)carbonylmethyl]-4-(4H,6H-1,3,4-thiadiazin-5-one-2-yl)pyridinium bromide (3.84 g, 9.09 mmol) was dissolved in methanol-water (1:1 v/v %) (50 ml), gradually added with sodium borohydride (3.43 g, 90.9 mmol) under ice cooling and then stirred at room temperature overnight. The solvent was removed under reduced pressure. The residue was added withdichloromethane, then washed with water and dried over anhydrous magnesium sulfate. The solvent was removed to obtain the titled compound (2.44 g) aswhite crystals.

Workup

  1. customThe solvent was removed under reduced pressure
  2. additionThe residue was added withdichloromethane
  3. washwashed with water
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was removed

Sources & evidence

ORD record
ord-6d8a55d7e32b45519836ee31d12f4125
Source dataset
uspto-grants-1995_08
Patent number
US05446042

Reaction notes

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