Synthesis of Benzenesulfonamide Derivatives via Ring Opening of Aziridines in the Presence of Magnetically Retrievable Graphene Based (CoFe@rGO) Nanohybrid

• Published in: Journal of inorganic and organometallic polymers and materials 2022-03, Vol.32 (3), p.814-830
• Main Authors: Sheoran, Ankush, Komal, Kaur, Jaspreet, Kaur, Paramdeep, Agarwal, Jyoti, Kumar, Vinod, Bansal, S., Tikoo, K. B., Singhal, Sonal
• Format: Article
• Language: English
• Subjects: Amines; Aromatic compounds; Catalysts; Chemistry; Chemistry and Materials Science; Diamines; Graphene; Inorganic Chemistry; Organic Chemistry; Polymer Sciences; Reaction time; Ring opening; Solvents; X ray photoelectron spectroscopy
• ISSN: 1574-1443; 1574-1451
• DOI: 10.1007/s10904-021-02216-6

Graphene based magnetic nanohybrids have engrossed considerable research curiosity because of their exceptional properties and diverse applications associated with green chemistry. In this regard, a practical, facile and regioselective preparation of 1,2-diamines from N -tosylaziridine/( S )-(+)-2-Benzyl-1-( p -tolylsulfonyl)aziridine and aryl amines in the presence of magnetically separable graphene based nanohybrid (CoFe@rGO) has been proposed under mild and solvent free conditions. The FT-IR, FE-SEM, XPS, XRD and TEM spectroscopic analysis confirmed the formation of the CoFe@rGO nanohybrids. For unsymmetrical aziridine, nucleophilic attack of aryl amines was observed to take place selectively at the more substituted carbon atom of aziridine ring. Environmentally benign, efficient, shorter reaction time, solvent-free conditions, low catalyst loading, excellent reaction yields and reusability of the catalyst for six consecutive runs without significant loss in its activity are the key advantages of this protocol. Graphical Abstract