The Journal of organic chemistry

Microwave-assisted copper-catalyzed preparation of diaryl chalcogenides

S Kumar, L Engman

Index: Kumar, Sangit; Engman, Lars Journal of Organic Chemistry, 2006 , vol. 71, # 14 p. 5400 - 5403

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Citation Number: 151

Abstract

Diaryl chalcogenide synthesis employing diaryl dichalcogenides and aryl halides as starting materials in the presence of excess magnesium and a catalytic amount of CuI/bipyridyl is significantly improved by microwave heating. Reaction times can be reduced from 2 to 3 days to 6-8 h. Both aryl bromides and aryl chlorides can be used as substrates in the substitution reaction. The procedure is useful not only for diaryl sulfide and diaryl selenide ...

~60%

~70%

~66%

~56%

~66%

~60%

~41%

~46%

~43%

~86%

~57%

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