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1749-04-8

P-DIMETHYLAMINOBENZYLIDENE P-ANISIDINE synthesis

3synthesis methods
-

Yield:1749-04-8 93%

Reaction Conditions:

with sulfuric acid in neat (no solvent);Microwave irradiation;Sealed tube;Green chemistry;

Steps:

synthesis of imines

General procedure: An appropriate equi-molar quantities of aryl amines (2 mmol), substituted benzaldehydes (2 mmol) and fly-ash: H2SO4 (0.5 g) have been taken in ACE tube and tightly capped. The mixture has been subjected to microwave irradiation for 6-12 min in a microwave oven (Scheme 1) (LG Grill, Intellowave, Microwave Oven, 160-800 W) and then cooled to room temperature. After separating the organic layer with dichloromethane the solid product has been obtained on evaporation. The solid, on recrystallization from benzene-hexane mixture afforded glittering product. The insoluble catalyst has been recycled by washing with ethyl acetate (8 mL) followed by drying in an oven at 100 °C for 1 h and reused for further reactions.

References:

Suresh;Kamalakkannan;Ranganathan;Arulkumaran;Sundararajan;Sakthinathan;Vijayakumar;Sathiyamoorthi;Mala;Vanangamudi;Thirumurthy;Mayavel;Thirunarayanan [Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy,2013,vol. 101,p. 239 - 248]