title: Transition-metal free reactions of boronic acids: cascade addition - ring-opening of furans towards functionalized γ-ketoaldehydes.
abstract: We describe the first ring-opening of furfuryl alcohols with boronic acids to afford functionalized γ-ketoaldehydes. The transformation builds a new C-C bond at the original C-4 of the starting furan, and tolerates ring-substitution at C-3 and C-4 positions. The reaction takes place under metal-free conditions by promotion with tartaric acid.
authors.affiliation: Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa, 28040-Madrid, Spain. csaky@ucm.es.
authors.forename: S
authors.initials: S
authors.lastname: Roscales
authors.affiliation: Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa, 28040-Madrid, Spain. csaky@ucm.es.
authors.forename: A G
authors.initials: AG
authors.lastname: Csákÿ