Electrophilic and nucleophilic reagents
Bunnett, Joseph F. Department of Chemistry, University of California, Santa Cruz, California.
Last reviewed:January 2020
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Electrophilic reagents are chemical species which, in the course of chemical reactions, acquire electrons, or a share in electrons, from other molecules or ions. Although this definition embraces all oxidizing agents and all Lewis acids, electrophilic reagents are ordinarily thought of as cationic species, such as H+, NO2+, Br+, or SO3 (or carriers of these species such as HCl, CH3 COONO2, or Br2), which can form stable covalent bonds with carbon atoms. Electrophilic reagents frequently are positively charged ions (cations). See also: Acid and base
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