Water → 1-[2-(2,6-Diethyl-4-methylphenyl)-2-oxoacetyl]-1-methyl-2-(phenylmethylidene)hydrazine

HRID 335471Notes

Reaction equation

[CH2:1]([C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[C:5]([CH2:10][CH3:11])[C:4]=1[C:12](=[O:24])[C:13]([NH:15][N:16]=[CH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)=[O:14])[CH3:2].[C:25](=O)([O-])[O-].[K+].[K+].S(OC)(OC)(=O)=O.O>C1(C)C=CC=CC=1.CN(C)N>[CH2:1]([C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[C:5]([CH2:10][CH3:11])[C:4]=1[C:12](=[O:24])[C:13]([N:15]([CH3:25])[N:16]=[CH:17][C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1)=[O:14])[CH3:2]

Participants

Conditions

Temperature: 5 °C

Procedure

To a 50 mL volume three-necked flask, 1.0 g of 1-[2-(2,6-diethyl-4-methylphenyl)-2-oxoacetyl]-2-(phenylmethylidene)hydrazine ((40-a)-(14)-6), 3.5 ml of toluene and 629 mg of potassium carbonate were added and then, 9.1 mg of N,N-dimethylhydrazine solved in 2.3 ml of toluene and 577 mg of dimethyl sulfate were added thereto at 5° C. The mixture was stirred at 5° C. for 24 hours, 3 g of water was added thereto and the organic layer was removed. The aqueous layer was extracted with 3.5 ml of toluene two times. The organic layers were combined and concentrated under reduced pressure to give 1.037 g of a mixture (19:1 (GC area %)) of 1-[2-(2,6-diethyl-4-methylphenyl)-2-oxoacetyl]-1-methyl-2-(phenylmethylidene)hydrazine ((40-b)-(15)-5) and methyl 2-(2,6-diethyl-4-methylphenyl)-2-oxo-N-(phenylmethylidene)ethanehydrazonate (x-1).

Workup

customat 5° C
customthe organic layer was removed
extractionThe aqueous layer was extracted with 3.5 ml of toluene two times
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-2132c99abdb14d6b9427369704835bb5
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08884010B2

Reaction notes

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