title: Rh(II)-catalyzed reactions of differentially substituted bis(diazo) functionalities.
abstract: The chemoselective reaction of donor/acceptor (D/A) and acceptor/acceptor (A/A) diazo moieties in the same molecule was examined using 3-diazo-1-(ethyl 2-diazomalonyl)indolin-2-one under rhodium(II) catalysis. The D/A diazo group undergoes selective cyclopropanation as well as XH-insertion, leaving behind the second diazo group for a further intramolecular dipolar cycloaddition reaction.
authors.affiliation: Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA.
authors.forename: Sara A
authors.initials: SA
authors.lastname: Bonderoff
authors.forename: Albert
authors.initials: A
authors.lastname: Padwa