Sulfated polyborate: mild, efficient and eco-friendly catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones
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DOI: 10.1007/s13738-017-1109-x
Abstract: An efficient, inexpensive and recyclable sulfated polyborate catalyst was applied in a three-component, one-pot cyclocondensation of isatoic anhydride, aldehydes and ammonium acetate/amines to afford the corresponding 2,3-dihydroquinazolin-4(1H)-ones. The key advantages of the present method are… read more here.
Keywords: dihydroquinazolin ones; sulfated polyborate; polyborate mild; catalyst ... See more keywords
Sulfated polyborate-catalyzed N-formylation of amines: a rapid, green and efficient protocol
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DOI: 10.1007/s13738-017-1186-x
Abstract: A rapid, green and efficient method for N-formylation reaction of various amines with formic acid in the presence of sulfated polyborate catalyst under solvent-free conditions has been described. The catalyst has the advantage of mild… read more here.
Keywords: rapid green; formylation; protocol; sulfated polyborate ... See more keywords