5.9 Oxidation: C–X Bond Formation (X=Halogen, S, Se)

Add time:09/03/2019    Source:sciencedirect.com

This chapter describes the reactions of direct enantioselective carbon–X bond formation based on electrophilic reactions via the functionalization of C–H bonds or sp2 carbon with electrophilic X donors. The X atoms treated here are F, Br, Cl, I, S, and Se. Both stoichiometric and catalytic strategies, including the use of chiral electrophilic reagents, are covered but diastereoselective reactions are excluded. The first half of the chapter describes the electrophilic enantioselective halogenation reactions including fluorination, bromination, chlorination, and iodination by both stoichiometric and catalytic pathways. In the second half, we discuss the carbon–sulfur and carbon–selenium bonds formation reactions via the enantioselective electrophilic pathway.

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