Solvent free one pot syntheses of highly substituted propargyl ethers and propargyl amines from propargyl alcohols catalyzed by recyclable alumina-sulfuric acid
develop an efficient protocol for the solvent-free synthesis of a wide variety of highlysubstituted propargyl ethers and amines using alumina-sulfuric acid as a recyclable heterogeneous solid acidcatalyst has been presented. This mild protocol tolerates a good number of acid-sensitive moieties and can be applicable to a diverse range of alcohols and amines accommodating a variety of substitution patterns