HCID 67148455, compound → HCID 86612052, compound

HRID 1786700Notes

Reaction equation

HRID 1786700 reaction equation
[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([CH2:17][OH:18])[CH:15]=2)[CH:10]=[C:9]1[C:19]1[CH:24]=[C:23]([C:25]2[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=2)[N:22]=[N:21][C:20]=1[O:31][CH3:32])=[O:7])([CH3:4])([CH3:3])[CH3:2]>ClCCl.[O-2].[Mn+4].[O-2]>[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([CH:17]=[O:18])[CH:15]=2)[CH:10]=[C:9]1[C:19]1[CH:24]=[C:23]([C:25]2[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=2)[N:22]=[N:21][C:20]=1[O:31][CH3:32])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 1

HCID 67148455HCID 67148455, compound

Product 1

HCID 86612052HCID 86612052, compoundYield 82%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalyst2×HCID 6344DichloromethaneSolvent2×

Procedure

2 g 6-Hydroxymethyl-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester is dissolved in 46 mL dichloromethane. After addition of 1.61 g activated manganese (IV) oxide the reaction mixture is heated to reflux for 1 hour. Then every two hours additional manganese (IV) oxide is added until the conversion is complete. The reaction mixture is diluted with dichloromethane and filtered over celite. 1.63 g (82%) crude product is obtained, which is directly used in the next reaction.

Workup

  1. additionAfter addition of 1.61 g
  2. temperatureis heated
  3. temperatureto reflux for 1 hour
  4. filtrationfiltered over celite

Sources & evidence

ORD record
ord-8e9388745e8c40c88dfe425586cb5534
Source dataset
uspto-grants-2009_03
Patent number
US07507734B2

Reaction notes

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