Methane → HCID 178430573, compound

HRID 345836Notes

Reaction equation

HRID 345836 reaction equation
[CH2:1]([N:8]=[C:9]([C:11]1[NH:12][CH:13]=[C:14]([CH3:20])[CH2:15][C:16]=1[C:17]([OH:19])=[O:18])[OH:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C>O1CCCC1.[Pd]>[CH2:1]([N:8]=[C:9]([CH:11]1[CH:16]([C:17]([OH:19])=[O:18])[CH2:15][CH:14]([CH3:20])[CH2:13][NH:12]1)[OH:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Procedure

17.5 g (70 mmol) of 5-methyl-1,4-dihydropyridine-2,3-dicarboxylic acid N-benzylimide are hydrogenated in 150 ml of tetrahydrofuran at 70° C. and under 100 bar over palladium on active charcoal. Then the catalyst is filtered off and the filtrate is concentrated by evaporation. The solid oily residue (13.0 g) is used as a crude product in the next stage.

Workup

  1. filtrationThen the catalyst is filtered off
  2. concentrationthe filtrate is concentrated by evaporation

Sources & evidence

ORD record
ord-298982670b3644f4be52a23d871fb52e
Source dataset
uspto-grants-1991_10
Patent number
US05059597

Reaction notes

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