Aluminium lithium hydride → HCID 178434646, compound

HRID 2261693Notes

Reaction equation

HRID 2261693 reaction equation
C([O:3][C:4]([C:6]1[CH:7]=[CH:8][C:9]2[S:13][C:12]([C:14]3[C:15]([CH3:20])=[N:16][NH:17][C:18]=3[NH2:19])=[N:11][C:10]=2[CH:21]=1)=O)C.[H-].[Al+3].[Li+].[H-].[H-].[H-].O.O.O.O.O.O.O.O.O.S([O-])([O-])(=O)=O.[Na+].[Na+]>C1COCC1>[NH2:19][C:18]1[NH:17][N:16]=[C:15]([CH3:20])[C:14]=1[C:12]1[S:13][C:9]2[CH:8]=[CH:7][C:6]([CH2:4][OH:3])=[CH:21][C:10]=2[N:11]=1

Participants

5

Reactant 3

HCID 21226445Aluminium lithium hydrideHCID 131728565Sodium sulfate nonahydrateHCID 178468708HCID 178468708, compound

Product 1

HCID 178434646HCID 178434646, compoundYield 81.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 2-(5-amino-3-methyl-1H-pyrazol-4-yl)-benzothiazole-5-carboxylic acid ethyl ester (30 mg) in THF (1 mL) was added lithium aluminum hydride (4 mg). The reaction mixture was stirred at room temperature for 5 hrs at which point sodium sulfate nonahydrate was added. The resulting mixture was stirred for an additional 30 min. The solids were removed by filtration. The solvent was then evaporated and the residue was purified by flash column chromatography eluting with CHCl3:MeOH=9:1 to yield 21 mg (81%) of the title compound as a cream coloured solid. MS (m/z, ES+): 261.1 (M+1, 100%).

Workup

  1. additionwas added
  2. customThe solids were removed by filtration
  3. customThe solvent was then evaporated
  4. customthe residue was purified by flash column chromatography
  5. washeluting with CHCl3

Sources & evidence

ORD record
ord-59a9b5e0c7ab4736ad16d7544e11389c
Source dataset
uspto-grants-2010_12
Patent number
US07847101B2

Reaction notes

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