Organic Syntheses consists of protocols for the synthesis of useful chemical compounds. Each protocol is repeated in the laboratory of one of the editorial board members for accuracy or for missing experimental details prior to publication. For each reaction, source of reagents, waste disposal information, a discussion of the results, references to the primary literature, and an appendix of nomenclature and registry numbers are discussed. Volume 83 continues the tradition of providing significant and interesting procedures, which will prove worthwhile to many synthetic chemists working in increasingly diverse areas.

Dennis P. Curran is?Distinguished Service Professor and head of the Curran Research Group in the Department of Chemistry at the University of Pittsburgh in Pennsylvania.?He received his Ph.D. from the University of Rochester in 1979 and has held positions at the University of Wisconsin and University of Pittsburgh.?He is an Associate Editor of "Organic Syntheses",?and serves as both an Associate Editor and member of the Editorial Advisory Board of "Organic Reactions".?His research interests include?synthetic radical chemistry, and radical reactions ideally suited for executing sophisticated cascade processes that build complex products from simple starting materials.?He is an ISI Highly Cited Researcher, among the top 100 in Chemistry.