First example of predominant β-orientation in electrophilic substitution of pyrrole
Maurizio Speranza
Abstract
Maurizio Speranza
Abstract
The isomeric distribution of the neutral products from the gas-phase electrophilic attack of 3He3H+, CH3FCH3+, and t-C4H9+ ions on pyrrole provides the first experimental evidence for predominant β-orientation in electrophilic substitution of pyrrole [β : α N = 2·5 : 2·0 : 1·0(3He3H+); 1·4 : 0·4 : 1·0 (CH3FCH3+); 10·3 : 3·0 : 1·0 (t-C4H9+)].
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The isomeric distribution of the neutral products from the gas-phase electrophilic attack of 3He3H+, CH3FCH3+, and t-C4H9+ ions on pyrrole provides the first experimental evidence for predominant β-orientation in electrophilic substitution of pyrrole [β : α N = 2·5 : 2·0 : 1·0(3He3H+); 1·4 : 0·4 : 1·0 (CH3FCH3+); 10·3 : 3·0 : 1·0 (t-C4H9+)].
Key concepts: Pyrrole, Electrophile, Electrophilic substitution, Chemistry, Orientation (vector space), Substitution (logic), Ion, Substitution reaction