5-Iodoisatin → HCID 178517208, compound

HRID 642064Notes

Reaction equation

HRID 642064 reaction equation
[I:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6](=[O:11])[C:5]2=O.[NH:13]([C:15]([C:17]1[CH:22]=[CH:21][C:20]([NH:23][C:24]([C:26]2[O:27][CH:28]=[CH:29][CH:30]=2)=[O:25])=[CH:19][CH:18]=1)=[O:16])[NH2:14]>C(O)(=O)C>[I:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6](=[O:11])[C:5]2=[N:14][NH:13][C:15]([C:17]1[CH:18]=[CH:19][C:20]([NH:23][C:24]([C:26]2[O:27][CH:28]=[CH:29][CH:30]=2)=[O:25])=[CH:21][CH:22]=1)=[O:16]

Participants

4

Reactant 2

HCID 886955-IodoisatinHCID 9813598HCID 9813598, compound

Product 1

HCID 178517208HCID 178517208, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Conditions

Temperature
100 °C

Procedure

Following the general method as outlined in Example 1, into a suspension of 5-iodo-1H-indole-2,3-dione in acetic acid was added N-[4-(hydrazinocarbonyl)phenyl]-2-furamide. After stirring at 100° C. the reaction mixture was cooled to rt and a yellow solid precipitated out. Filtration on a fritté, washing with AcOH, water and drying under vacuo at 60° C. overnight gave 81 mg of the title compound (81%) as a yellow powder in 96.7% purity by HPLC (Rt: 4.05, gradient of 8 min, MaxPlot detection between 230 and 400 nm).

Workup

  1. temperaturewas cooled to rt
  2. customa yellow solid precipitated out
  3. filtrationFiltration on a fritté
  4. washwashing with AcOH, water
  5. customdrying under vacuo at 60° C. overnight

Sources & evidence

ORD record
ord-252799c2960545b885e2f249456053e1
Source dataset
uspto-grants-2010_04
Patent number
US07696231B2

Reaction notes

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