Aromatic substitution by elimination-addition

SECTION 10.5. NUCLEOPHILIC AROMATIC SUBSTITUTION BY ADDITION-ELIMINATION... [Pg.579]

Nucleophilic Aromatic Substitution by Addition-Elimination (Section 22.3B)... [Pg.23]

Although nucleophilic aromatic substitution by the elimination-addition mecha nism IS most commonly seen with very strong amide bases it also occurs with bases such as hydroxide ion at high temperatures A labeling study revealed that hydroly SIS of chlorobenzene proceeds by way of a benzyne intermediate... [Pg.985]

Nucleophilic aromatic substitution by the elimination-addition mecha nism can lead to substitution on the same carbon that bore the leaving group or on an adjacent carbon... [Pg.987]

SECTION 10.6. NUCLEOPHILIC AROMATIC SUBSTITUTION BY THE ELIMINATION-ADDITION MECHANISM... [Pg.593]

Nucleophilic Aromatic Substitution by the Elimination-Addition Mechanism... [Pg.593]

Nucleophilic aromatic substitution by the elimination-addition mechanism is impossible, owing to the absence of any protons that might be abstracted from the substrate. The addition-elimination pathway is available, however. [Pg.687]

Mechanism of nucleophiuc substitution on an aromatic ring by addition-elimination. [Pg.704]

Other aryl halides that give stabilized anions can undergo nucleophilic aromatic substitution by the addition-elimination mechanism Two exam pies are hexafluorobenzene and 2 chloropyridme... [Pg.987]

Cycloalkene (Section 5 1) A cyclic hydrocarbon characterized by a double bond between two of the nng carbons Cycloalkyne (Section 9 4) A cyclic hydrocarbon characterized by a tnple bond between two of the nng carbons Cyclohexadienyl anion (Section 23 6) The key intermediate in nucleophilic aromatic substitution by the addition-elimination mechanism It is represented by the general structure shown where Y is the nucleophile and X is the leaving group... [Pg.1280]

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