an efficient one pot procedure for preparation of symmetrical n,n'-disubstituted urea from aromatic and aliphatic amines and urea under microwave irradiation

Authors

mohammad s. khajavi

mohammad gl dakamin

hassan hazarkhani

mostafa hajihadi

farzad nikpour

abstract

a phosgene-free synthesis of symmetrical n,n'-disubstituted urea by the reaction of aromatic and aliphatic primary amines and urea promoted by  microwave irradiation in the presence of a suitable energy-transfer solvent such as n-n-dimethylacetamide is described.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

An Efficient One Pot Procedure for Preparation of Symmetrical N,N'-Disubstituted Urea from Aromatic and Aliphatic Amines and Urea under Microwave Irradiation

A phosgene-free synthesis of symmetrical N,N'-disubstituted urea by the reaction of aromatic and aliphatic primary amines and urea promoted by  microwave irradiation in the presence of a suitable energy-transfer solvent such as N-N-dimethylacetamide is described.

full text

H3PW12O40 as an efficient catalyst for one-pot- tricomponent synthesis of chromeno[4,3-b]quinolones under microwave irradiation

Some Chromeno[4,3-b]quinoline derivatives were synthesized in a tricomponents one-pot reaction of 1,3-cyclohexadione arylaldehydes and 4-aminocoumarin under Microwave irradiation in the solventless system by using a heteropolyacid catalyst ,H3[PW12O40] in 80-95% yields and high rates. The shorter reaction times, one-pot, good yields, simple work-up procedure and environmentally friendly conditi...

full text

One-pot synthesis of Benzimidazole derivatives under microwave Irradiation and solvent-free condition

A simple, fast, efficient and environmentally friendly method for synthesis of benzimidazole and its 2-alkyl, aryl and heteroaryl substituted derivatives was developed using zeolite HY. Two component cyclolcondensation of 1,2-phenylenediamine (o-phenylenediamine) and commercially available carboxylic acids catalyzed by zeolite HY without any solvent, under microwave irradiation led to formation...

full text

h3pw12o40 as an efficient catalyst for one-pot- tricomponent synthesis of chromeno[4,3-b]quinolones under microwave irradiation

some chromeno[4,3-b]quinoline derivatives were synthesized in a tricomponents one-pot reaction of 1,3-cyclohexadione arylaldehydes and 4-aminocoumarin under microwave irradiation in the solventless system by using a heteropolyacid catalyst ,h3[pw12o40] in 80-95% yields and high rates. the shorter reaction times, one-pot, good yields, simple work-up procedure and environmentally friendly conditi...

full text

Deep Eutectic Solvent Based on Choline Chloride/Urea as an Efficient Catalytic System for the One-Pot Synthesis of Highly Functionalized 1,4-Dihydropyridines and Polysubstituted 4H-Chromenes

One-pot four-component synthesis of polyfunctionalized 1,4-dihydropyridine derivatives was developed by a condensation of aldehydes, malononitrile, diethylacetylenedicarboxylate and aniline in the presence of choline chloride/urea as a deep eutectic solvent (DES)at room temperature.Moreover, an efficient method was reported for the synthesis of highly substituted 4H-chromenes through one-...

full text

My Resources

Save resource for easier access later


Journal title:
iranian journal of chemistry and chemical engineering (ijcce)

Publisher: iranian institute of research and development in chemical industries (irdci)-acecr

ISSN 1021-9986

volume 19

issue 1 2000

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023