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Microwave-assisted sequential one-pot protocol to benzothiadiazin-3-one-1,1-dioxides via a copper-catalyzed N-arylation strategy.
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ABSTRACT:
SUBMITTER: Rolfe A
PROVIDER: S-EPMC2888103 | biostudies-literature | 2009 Dec
REPOSITORIES: biostudies-literature
Publications
Microwave-assisted sequential one-pot protocol to benzothiadiazin-3-one-1,1-dioxides via a copper-catalyzed N-arylation strategy.
Tetrahedron letters 20091201 50
A microwave-assisted, sequential, one-pot protocol has been developed for the synthesis of a variety of benzothiadiazin-3-one-1,1-dioxides. This protocol utilizes a copper-catalyzed N-arylation of α-bromo-benzenesulfonamides with a number of amines to generate the corresponding 2-aminobenzenesulfonamides, which undergo cyclization to the desired sultams using carbonyl diimidazole (CDI). A range of conditions was evaluated for the key C-N bond formation step with tolerance toward functionalized a ...[more]