Benoît de Carné-Carnavalet

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A variety of 4-substituted 3-azabicyclo[3.1.0]hexan-2-ones have been prepared from 2-iodocyclopropanecarboxamides by a three-step sequence involving a copper-free Sonogashira coupling with terminal aryl- or heteroarylalkynes, followed by a 5-exo-dig cyclization and an ionic hydrogenation.
The copper-free Sonogashira coupling between N-substituted cis- 2-iodocyclopropanecarboxamides and terminal aryl-, heteroaryl-alkynes or enynes, followed by 5-exo-dig cyclization of the nitrogen amide onto the carbon-carbon triple bond, provides a remarkably efficient access to a variety of substituted 4-methylene-3-azabicyclo[3.1.0]hexan-2-ones in(More)
Iron trichloride promotes the cationic cyclization of o-(arylethynyl)aryl isocyanates leading to 3-(arylchloromethylene)oxindoles which can be stereoselectively converted to (Z)-3-(aminomethylene)oxindoles under straightforward conditions. When the alkyne is substituted by an alkyl group, activation of the allylic C-H bond also occurs producing(More)
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