2-Methylbenzenesulfonic acid → 1-(3-Ethyl-5-methyl-4-isoxazolyl)ethanone 2-phenylhydrazone

HRID 434500Notes

Reaction equation

HRID 434500 reaction equation
[C:1]([C:4]1[C:5]([CH2:10][CH3:11])=[N:6][O:7][C:8]=1[CH3:9])(=O)[CH3:2].[C:12]1([NH:18][NH2:19])[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.C1(C)C(S(O)(=O)=O)=CC=CC=1>C(O)C>[C:12]1([NH:18][N:19]=[C:1]([C:4]2[C:5]([CH2:10][CH3:11])=[N:6][O:7][C:8]=2[CH3:9])[CH3:2])[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

Participants

5

Reactant 3

HCID 69252-Methylbenzenesulfonic acidHCID 7516PhenylhydrazineHCID 12720320HCID 12720320, compound

Product 1

HCID 731766431-(3-Ethyl-5-methyl-4-isoxazolyl)ethanone 2-phenylhydrazone

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 61.1 g. (0.4 mole) of 4-acetyl-3-ethyl-5-methyl-isoxazole, 39.4 ml. (0.4 mole) of phenyl hydrazine and 500 mg. toluenesulfonic acid in 400 ml. ethanol is stirred at room temperature for 48 hours. The resulting solid is filtered and washed with cold ether to give 1-(3-ethyl-5-methyl-4-isoxazolyl)-1-ethanone phenyl hydrazone; m.p. 72° to 75° C.

Workup

  1. additionA mixture of 61.1 g
  2. filtrationThe resulting solid is filtered
  3. washwashed with cold ether

Sources & evidence

ORD record
ord-37286f1e879341f180aa43697f4a2071
Source dataset
uspto-grants-1983_08
Patent number
US04397850

Reaction notes

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