2-Hydrazinoethanol → HCID 22022028, compound

HRID 897003Notes

Reaction equation

HRID 897003 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:9](=[O:23])[C:10]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([O:21][CH3:22])[CH:16]=2)=[C:11]([CH3:14])[C:12]=1O.[OH:24][CH2:25][CH2:26][NH:27][NH2:28]>C(O)C>[CH3:22][O:21][C:17]1[CH:16]=[C:15]([C:10]2[C:9](=[O:23])[N:27]([CH2:26][CH2:25][OH:24])[N:28]=[C:12]([CH2:8][C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=3[F:1])[C:11]=2[CH3:14])[CH:20]=[CH:19][CH:18]=1

Participants

4

Reactant 2

HCID 80172-HydrazinoethanolHCID 22022100HCID 22022100, compound

Product 1

HCID 22022028HCID 22022028, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of 2-(2-fluorophenyl)-3-hydroxy-4-methyl-5-(3-methoxyphenyl)-2,4-cyclopentadienone (620 mg, 2 mmol) and hydroxylethylhydrazine (360 mg, 45 mmol)) in ethanol (5 mL) was heated at reflux for 6 hours. The resulting solution was concentrated in vacuo and the residue was dissolved in ethyl acetate (80 mL), washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired compound as colorless oil. MS: 369 (MH+).

Workup

  1. temperatureat reflux for 6 hours
  2. concentrationThe resulting solution was concentrated in vacuo
  3. dissolutionthe residue was dissolved in ethyl acetate (80 mL)
  4. washwashed with brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-3e76330027884e6cbf92d47f98ff8009
Source dataset
uspto-grants-2005_07
Patent number
US06921761B2

Reaction notes

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