p-Toluidine → HCID 178468328, compound

HRID 1624547Notes

Reaction equation

[CH3:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][CH:3]=1.[N:9]([O-])=O.[Na+].C([O-])(=O)C.[Na+].[C:18]([CH2:21][C:22](=[O:24])[CH3:23])(=[O:20])[CH3:19]>C(O)(=O)C.Cl.O.C(O)C>[CH3:1][C:2]1[CH:8]=[CH:7][C:5]([NH:6][N:9]=[C:21]([C:22](=[O:24])[CH3:23])[C:18](=[O:20])[CH3:19])=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 4-methylaniline (1000 mg, 9.34 mmol) in 10 mL of acetic acid and 2 mL of concentrated hydrochloride solution, sodium nitrite (774 mg, 11.21 mmol) in 4 mL of water was added dropwise at 0° C., and the mixture was stirred at 0° C. for 1 h. Then to the reaction mixture was added dropwise a solution of sodium acetate (2299 mg, 28.04 mmol) and acetylacetone (1215 mg, 12.15 mmol) in 10 mL of ethanol and 6 mL of water. The mixture was stirred at room temperature overnight, filtered, washed with water, EtOH/H2O (1:1) and hexane, and dried to give 3-[(4-methylphenyl)hydrazono]pentane-2,4-dione (480 mg, 24%).

Workup

stirringThe mixture was stirred at room temperature overnight
filtrationfiltered
washwashed with water, EtOH/H2O (1:1) and hexane
customdried

Sources & evidence

ORD record: ord-85dc45e5bb854634b529cc7b56bbee60
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778944B2

Reaction notes

Loading…