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

HRID 1156581Notes

Reaction equation

HRID 1156581 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-a05033d07d064838b0a4e2ee373374d5
Source dataset
uspto-grants-1982_06
Patent number
US04336379

Reaction notes

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