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Highly Regioselective, Lewis Acid‐Free Electrophilic Aromatic Substitution
Author(s) -
Smith Keith
Publication year - 1997
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199704)68:4<432::aid-jctb617>3.0.co;2-x
Subject(s) - regioselectivity , nitration , lewis acids and bases , electrophilic substitution , electrophilic aromatic substitution , chemistry , electrophile , catalysis , lewis acid catalysis , organic chemistry , halogenation , acylation , substitution reaction , reagent , electrophilic addition , combinatorial chemistry
By appropriate choice of solid catalyst and stoichiometric reagent it is possible to develop alternative procedures for many electrophilic aromatic substitution reactions that avoid the need for Lewis acid catalysts such as aluminium chloride. Furthermore, the catalysts may be regenerated, the reactions may be more controlled, corrosive by‐products may be avoided and the structural features of the solid may lead to much greater regioselectivity than with traditional Lewis acids. Examples where such benefits are found include nitration, chlorination, bromination and acylation. © 1997 SCI.