Abstract
Abstract Group 6 metal Fischer carbene complexes are extremely versatile organometallic reagents in organic synthesis. This chapter provides an overview of their chemistry and updates the main results in the field. In the initial sections the strategies employed to prepare them are described, followed by the methods developed to remove the metal moiety. Next, their chemical behavior is analyzed from a synthetic perspective, beginning with the reactivity of alkyl carbene complexes, and also introducing those reactions where only the carbene carbon is involved. Then, the chemistry of alkenyl and aryl, and alkynyl carbene complexes is successively discussed. A final section is dedicated to the synthesis and reactivity of nonheteroatom-stabilized carbene complexes.
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