No abstract

No abstract

No abstract

A silica catalyzed solvent-free three-component domino Knoevenagel-hetero-Diels–Alder (DKHDA) reaction between 1,3-dicarbonyl, aldehydes/ketones, and alkenes/alkynes leading to chromenones, dihydrochromenones and spirochromenones has been described.

No abstract

No abstract

Selective N-Acetylation of Aromatic Amines Using Acetonitrile as Acylating Agent. -The new method for the N-acetylation of aromatic amines uses acetonitrile as an acylating agent and in situ generated trimethylsilyl iodide as the catalyst under microwave irradiation. The reaction is selective toward aromatic amines while aliphatic amines remain intact. Milder conditions, short reaction times, no requirement of toxic acylating reagents like acetic anhydride and acetyl chloride and any extra chlorinated solvents are important features of this reaction. -(SAIKIA, U. P.; HUSSAIN, F. L.; SURI, M.; PAHARI*, P.; Tetrahedron Lett. 57 (2016) 10, 1158-1160, http://dx.