An efficient one-pot protocol for the solvent-free synthesis of novel quinoline-3-thiocarboxamide and 2,3-dihydroquinazolin-4(1 H )-one derivatives
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DOI: 10.1016/j.tet.2017.06.047
Abstract: Abstract An efficient and straightforward synthesis of a series of novel poly-substituted quinoline-3-thiocarboxamides 3 and 2-(2-oxo-2-arylethylidene)-2,3-dihydroquinazolin-4(1H)-ones 4 from 3-oxo-N,3-diarylpropanethioamide 1 and the respective 2-aminoarylketone/2-aminoarylcarboxylic acid ester 2 by a two-component solvent-free reaction protocol was described. read more here.
Keywords: efficient one; protocol; quinoline; solvent free ... See more keywords
Efficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by titanium silicon oxide nanopowder in aqueous media
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DOI: 10.1080/00397911.2016.1254801
Abstract: ABSTRACT An efficient synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives is accomplished in aqueous media by a three-component reaction of isatoic anhydride, primary amines or ammonium acetate, and aldehydes catalyzed by titanium silicon oxide nanopowder. A variety of… read more here.
Keywords: aqueous media; efficient synthesis; synthesis dihydroquinazolin; catalyzed titanium ... See more keywords