A New Entry to Alkylidenecyclopropanes Through a Ramberg-Backlund Rearrangement of Cyclopropylsulfones

Abstract

The first use of the Ramberg-Backlund rearrangement of cyclopropylsulfones in the synthesis of alkylidenecyclopropanes is reported.

Keywords:

• Cyclopropanes
• Alkylidenecyclopropanes
• Ramberg-Backlund
• Cyclopropylsulfones

Acknowledgments

Financial support from the Ministero dell'Università e della Ricerca Scientifica e Tecnologica, Rome, and by the University of Cagliari (National Project “Stereoselezione in Sintesi Organica. Metodologie ed Applicazioni”) and from C.N.R. (Italy) is gratefully acknowledged.