Synthesis and photophysical properties of trichloro(fluoro)-Substituted 6-(3-oxo-1-(alk-1-en-1-yl)amino)coumarins and their 2,2-Difluoro-2H-1,3,2-oxazaborinin-3-ium-2-uide heterocycles
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DOI: 10.1016/j.jfluchem.2020.109614
Abstract: Abstract This short study reports firstly the synthesis of a new series of six 1-substituted 6-((4,4,4-trihalo-3-oxo-alk-1-en-1-yl)amino)-2H-chromen-2-ones (4 and 5) and three 4- substituted 2,2-difluoro-3-(2-oxo-2H-chromen-6-yl)-6-(trichloromethyl)-2H-1,3,2-oxazaborinin-3-ium-2-uides (7), in which the selected 1- and 4-substituents are Me, Ph,… read more here.
Keywords: alk amino; oxo alk; synthesis photophysical; oxazaborinin ium ... See more keywords