Browsing by Subject "4-chlorocoumarin-3-sulfonyl chloride"

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An improved synthesis of 4-chlorocoumarin-3-sulfonyl chloride and its reactions with different bidentate nucleophiles to give pyrido[1′, 2′:2,3]- and thiazino[3′,2′:2,3]-1,2,4-thiadiazino[6,5-c] benzopyran-6-one 7,7-dioxides

Jashari, Ahmed; Hey-Hawkins, Evamarie; Mikhova, Bozhana; Draeger, Gerald; Popovski, Emil (Basel : MDPI AG, 2007)

An improved synthetic method affording 4-chlorocoumarin-3-sulfonyl chloride (4) in very good yield (ca. 85 %) is reported. This compound was reacted with various bidentate nucleophiles such as 2-aminopyridines and ...

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