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Review | Regular issue | Vol 75, No. 1, 2008, pp.1-33
Published online, 28th September, 2007
DOI: 10.3987/REV-07-619
■ Heteropentalene Mesomeric Betaines of Type C: Progress since the Early 1980s

Dietrich Moderhack

*Institute of Pharmaceutical Chemistry, Technical University, D-38106 Brauschweig, Germany

Abstract

This account briefly summarizes the achievements made in the last twenty-five years. Synthesis, properties, and reactivity are dealt with here.