A metal-free C–C/C–O bond formation for the synthesis of 2-amino-5-oxo-4-aryl-4H,5H-pyrano[3,2-c]chromene-3-carboxamide catalyzed by polystyrene-supported p-toluenesulfonic acid (PS-PTSA)
Sign Up to like & getrecommendations! Published in 2018 at "Synthetic Communications"
DOI: 10.1080/00397911.2018.1490770
Abstract: Abstract An efficient and eco-friendly procedure for the synthesis of 2-amino-5-oxo-4-aryl-4H,5H-pyrano[3,2-c]chromene-3-carboxamide has been developed through a one-pot three-component condensation of 4-hydroxycoumarin with aldehydes and cyanoacetamide, in the presence of catalytic amount of polystyrene-supported p-toluenesulfonic acid… read more here.
Keywords: aryl pyrano; amino oxo; synthesis amino; oxo aryl ... See more keywords
Synthesis of Novel Biologically Important 5-Amino-2-Oxo-7-Aryl-3,7-Dihydro-2H-Pyrano[2,3-d]Thiazole-6-Carbonitriles in Trifluoroethanol (TFE) under Ultrasound Irradiation Condition and Their Antimicrobial Activity
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DOI: 10.1080/10406638.2019.1711432
Abstract: A series of novel 5-amino-2-oxo-7-aryl-3,7-dihydro-2H-pyrano[2,3-d]thiazole-6-carbonitriles 5a–j have been synthesized by adopting a facile and simple methodology. The reaction of monochloroacetic ... read more here.
Keywords: pyrano thiazole; amino oxo; aryl dihydro; oxo aryl ... See more keywords