Topic
Benzopyran
About: Benzopyran is a research topic. Over the lifetime, 1889 publications have been published within this topic receiving 15235 citations.
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TL;DR: In this paper, it was shown that 2,2-diphenyl-2H-1-benzopyran (DPBP) in the presence of a primary or a secondary amine gave an addition product.
Abstract: Irradiation of 2,2-diphenyl-2H-1-benzopyran (DPBP) in the presence of a primary or a secondary amine gave an addition product. With a large excess of amine, the apparent quantum yield for product f...
3 citations
TL;DR: In this article, one-pot 1,3-dipolar cycloadditions in water are described to generate novel benzopyran, quinoline and cyclophane isoxazolines.
Abstract: Facile examples of one-pot 1,3-dipolar cycloadditions in water are described to generate novel benzopyran, quinoline and cyclophane isoxazolines.
3 citations
TL;DR: The ligand-free Pd-mediated reaction between styrene and a 6bromo-2,2-diaryl-2H-[1]benzopyran proceeded anomalously to give a 2-(diary lmethyl)-5-styrylbenzofuran via a tandem Heck coupling.
3 citations
Journal Article•
3 citations
TL;DR: In this article, an anti-Markovnikow hydration of some olefin derivatives of 4-hydroxy-2-pyrones and 4-Hydroxy-coumarins, followed by a regioselective intramolecular dehydration, involving the primary alcohols obtained and the enolic oxygen of the rings, promoted by Amberlyst 15 in boiling toluene, were obtained in fair yields.
3 citations