Potassium Hydroxide → P-ethyl-2-nitro-5-(3,5-dichloro-2-pyridyloxy)phenylphosphinic acid

HRID 1284435

Reaction equation

HRID 1284435 reaction equation
[CH2:1]([P:3]([C:7]1[CH:12]=[C:11]([O:13][C:14]2[C:19]([Cl:20])=[CH:18][C:17]([Cl:21])=[CH:16][N:15]=2)[CH:10]=[CH:9][C:8]=1[N+:22]([O-:24])=[O:23])(=[O:6])[O:4]C)[CH3:2].[OH-].[K+]>CO>[CH2:1]([P:3]([C:7]1[CH:12]=[C:11]([O:13][C:14]2[C:19]([Cl:20])=[CH:18][C:17]([Cl:21])=[CH:16][N:15]=2)[CH:10]=[CH:9][C:8]=1[N+:22]([O-:24])=[O:23])(=[O:4])[OH:6])[CH3:2]

Participants

4

Reactant 2

HCID 14797Potassium HydroxideHCID 54271340methyl P-ethyl-2-nitro-5-(3,5-dichloro-2-pyridyloxy)phenylphosphinate

Product 1

HCID 20251602P-ethyl-2-nitro-5-(3,5-dichloro-2-pyridyloxy)phenylphosphinic acid

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of methyl P-ethyl-2-nitro-5-(3,5-dichloro-2-pyridyloxy)phenylphosphinate (0.6 g.), methanol (10 ml.) and 5% aqueous potassium hydroxide (10 ml.) is heated to 90° for 15 min. The basic aqueous solution is acidified and extracted with ether. The combined ether extracts are washed and dried and the solvent is evaporated off to give P-ethyl-2-nitro-5-(3,5-dichloro-2-pyridyloxy)phenyl-phosphinic acid.

Workup

  1. temperatureis heated to 90° for 15 min
  2. extractionextracted with ether
  3. washThe combined ether extracts are washed
  4. customdried
  5. customthe solvent is evaporated off

Sources & evidence

ORD record
ord-577a8a0a5b2d426fa3818a3651ce8144
Source dataset
uspto-grants-1986_01
Patent number
US04563310

Linked notes

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