title: Mild niobium-catalyzed [2 + 2 + 2] cycloaddition of sila-triynes: easy access to polysubstituted benzosilacyclobutenes.
abstract: A new and efficient synthesis of highly sensitive benzosilacyclobutenes has been developed. For the first time, these compounds can be synthesized in very high yields by a mild, unprecedented intramolecular niobium-catalyzed [2 + 2 + 2] cycloaddition of easily accessible tetrasubstituted sila-triynes. An easy access to highly functionalized benzosilacyclobutenes enlarging the number of potential applications in organic and material chemistry is described.
authors: Sorbonne Universités, UPMC UNIV Paris 06, Institut Parisien de Chimie Moléculaire , UMR CNRS 8232, Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France.
authors: Cédric
authors: C
authors: Simon
authors: Muriel
authors: M
authors: Amatore
authors: Corinne
authors: C
authors: Aubert
authors: Marc
authors: M
authors: Petit