Regioselective Synthesis of Novel Fused Sulphonamide Derivatives Utilizing Microwave Irradiation

Title:Regioselective Synthesis of Novel Fused Sulphonamide Derivatives Utilizing Microwave Irradiation

Volume: 5 Issue: 1

Author(s): Asmaa M. Fahim*

Affiliation:

• Department of Green Chemistry, National Research Center Dokki, P.O. Box.12622, Cairo,Egypt

Keywords: Sulfonamide, thermal heating, microwave irradiation, heterocycles, benzofused heterocyclic, nucleophilic.

Abstract: Background: This paper describes the synthesis of novel fused heterocycles from the reaction 2-Bromo-N-(phenyl sulfonyl) acetamide derivatives with nitrogen nucleophilic reagents were carried out under microwave radiation and conventional heating. The synthesized compounds are excellent utilizing microwave irradiation rather than conventional heating.

Methods: Synthesis of sulfonamide derivatives was carried out under microwave radiation and conventional heating.

Results: Schotten-Baumann reaction for the synthesis of Bromo-N-(phenyl sulfonyl) acetamide derivatives by treatment of sulfonyl chloride derivatives with 2-bromoacetamide in pyridine. Reactivity of Bromo-N-(phenyl sulfonyl)acetamide derivatives towards urea derivatives to afford the corresponding aminothiazole and aminooxazole derivatives, benzofused heterocyclic derivatives.

Conclusion: In this investigation, we have synthesized novel aminothiazole, amino oxazole, benzo[e] [1,3]oxazin, benzo[e][1,3]thiazin, quinazoline-2-yl, (pyridine-4-ylamino)acetamide, 2-(benzo[d]thiazole- 2-ylthio) and 2-((1H-benzo[d]imidazol-2-yl)thio) derivatives incorporating sulphonamide moiety utilizing Microwave irradiation and Conventional heating. The products were obtained under microwave reaction in excellent yields in a short reaction time.

Cite this article as:

Fahim M. Asmaa*, Regioselective Synthesis of Novel Fused Sulphonamide Derivatives Utilizing Microwave Irradiation, Current Microwave Chemistry 2018; 5 (1) . https://dx.doi.org/10.2174/2213335604666171110172524