title: Stannyl cyclopropanes by diastereoselective cyclopropanations with (tributylstannyl)-diazoacetate esters catalyzed by Cu(I) N-heterocyclic carbene.
abstract: Catalyzed cyclopropanations of alkenes with Bu3SnC(=N2)CO2R (R = Et, t-Bu) have been achieved in good yield with excellent diastereoselectivity to make stannyl cyclopropanes having two or three stereocenters, one of which is quaternary.
authors.affiliation: Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA. bgawley@uark.edu
authors.forename: Robert E
authors.initials: RE
authors.lastname: Gawley
authors.forename: Sanjay
authors.initials: S
authors.lastname: Narayan