3-(benzyloxy)-N-(1-methyl-1H-pyrazol-3-yl)-5-{(1S)-1-methyl-2-[(triisopropylsilyl)oxy]ethoxy}benzamide → 3-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-[((1S)-1-methyl-2-{[tris(1-methylethyl)silyl]oxy}ethyl)oxy]benzamide

HRID 548659Notes

Reaction equation

HRID 548659 reaction equation
C([O:8][C:9]1[CH:10]=[C:11]([CH:21]=[C:22]([O:24][C@@H:25]([CH3:38])[CH2:26][O:27][Si:28]([CH:35]([CH3:37])[CH3:36])([CH:32]([CH3:34])[CH3:33])[CH:29]([CH3:31])[CH3:30])[CH:23]=1)[C:12]([NH:14][C:15]1[CH:19]=[CH:18][N:17]([CH3:20])[N:16]=1)=[O:13])C1C=CC=CC=1>[Pd].C1COCC1>[OH:8][C:9]1[CH:10]=[C:11]([CH:21]=[C:22]([O:24][C@@H:25]([CH3:38])[CH2:26][O:27][Si:28]([CH:35]([CH3:37])[CH3:36])([CH:29]([CH3:31])[CH3:30])[CH:32]([CH3:33])[CH3:34])[CH:23]=1)[C:12]([NH:14][C:15]1[CH:19]=[CH:18][N:17]([CH3:20])[N:16]=1)=[O:13]

Participants

4

Reactant 1

HCID 536296203-(benzyloxy)-N-(1-methyl-1H-pyrazol-3-yl)-5-{(1S)-1-methyl-2-[(triisopropylsilyl)oxy]ethoxy}benzamide

Product 1

HCID 536296193-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-[((1S)-1-methyl-2-{[tris(1-methylethyl)silyl]oxy}ethyl)oxy]benzamideYield 100.6%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

10% Palladium on carbon was added to 3-(benzyloxy)-N-(1-methyl-1H-pyrazol-3-yl)-5-{(1S)-1-methyl-2-[(triisopropylsilyl)oxy]ethoxy}benzamide (21.7 g, 40.4 mmol) in dry THF (480 mL) under argon. The reaction mixture was degassed and placed under a hydrogen balloon and stirred for 16 hours. The atmosphere was replaced with argon and mixture was filtered through diatomaceous earth then the filtrate evaporated and dried under high vacuum for 1 hour to give the title compound (18.2 g).

Workup

  1. customThe reaction mixture was degassed
  2. filtrationwas filtered through diatomaceous earth
  3. customthe filtrate evaporated
  4. customdried under high vacuum for 1 hour

Sources & evidence

ORD record
ord-226be4a3d62d42a9a885113ab8fee47f
Source dataset
uspto-grants-2011_05
Patent number
US07943607B2

Reaction notes

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