Monatshefte für Chemie-Chemical Monthly

Microwave-assisted synthesis of symmetrical and unsymmetrical N, N′-disubstituted thioureas and ureas over MgO in dry media

H Valizadeh, L Dinparast

Index: Valizadeh, Hassan; Dinparast, Leila Monatshefte fur Chemie, 2012 , vol. 143, # 2 p. 251 - 254

Full Text: HTML

Citation Number: 3

Abstract

Abstract Under mild microwave irradiation conditions a variety of symmetrical and unsymmetrical N, N′-disubstituted thioureas and ureas were prepared via the reaction of N- monosubstituted hydroxylamines with isocyanate and isothiocyanate derivatives over MgO under solvent-free conditions. This new method afforded satisfactory results with good yields, short reaction time, and simplicity in the experimental procedure. Graphical abstract

Related Articles:

Conformational preferences in alkylnitrosoureas

[Snyder, John K.; Stock, Leon M. Journal of Organic Chemistry, 1980 , vol. 45, # 5 p. 886 - 891]

Haloarene derivatives of carbamazepine with reduced bioactivation liabilities: 2-monohalo and 2, 8-dihalo derivatives

[Schweim, Harald G. Archiv der Pharmazie (Weinheim, Germany), 1987 , vol. 320, # 5 p. 430 - 437]

The nitration of derivatives of α??and β??naphthylamines: I. The nitration of methyl and ethyl α??naphthylcarbamates and of N??[α??naphthyl]??N'??ethylurea

[Kniphorst Recueil des Travaux Chimiques des Pays-Bas, 1925 , vol. 44, p. 704]

Haloarene derivatives of carbamazepine with reduced bioactivation liabilities: 2-monohalo and 2, 8-dihalo derivatives

[Schweim, Harald G. Archiv der Pharmazie (Weinheim, Germany), 1987 , vol. 320, # 5 p. 430 - 437]

Formation and reactions of (1-chloroalkyl) carbamoyl chlorides. Synthesis of 1, 2, 4-triazolidine-5-ones

[Koyano,K.; McArthur,C.R. Canadian Journal of Chemistry, 1973 , vol. 51, p. 333 - 337]

More Articles...