https://doi.org/10.1351/goldbook.N04249
A nucleophile (or nucleophilic @[email protected]) is a @[email protected] that forms a bond to its reaction partner (the @[email protected]) by donating both bonding electrons. A 'nucleophilic @[email protected]' is a @[email protected] reaction in which the @[email protected] supplying the @[email protected] acts as a nucleophile. For example:
N04249.png
The term 'nucleophilic' is also used to designate the apparent polar character of certain @[email protected], as inferred from their higher relative reactivity with reaction sites of lower @[email protected] Nucleophilic reagents are @[email protected]