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Substitution électrophile armatique. VI . Détermination des constantes σ + pour les groupes Si(CH 3 ) 3 et Sn(CH 3 ) 3
Author(s) -
Buschman O.,
Grosjean M.,
Nasielski J.,
Martin R. H.
Publication year - 1964
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19640470744
Subject(s) - chemistry , substituent , medicinal chemistry , trimethylsilyl , methanol , iodine , inductive effect , stereochemistry , organic chemistry
Rates of reaction between iodine and p ‐trimethylsilyl‐ and p ‐trimethylstannyl‐phenyl‐trimethyltin in methanol have been determined. These rates show that for the (CH 3 ) 3 Si‐ substituent, the donor inductive effect and the withdrawing mesomeric effect of the metal cancel each other; for the (CH 3 ) 3 Sn substituent, the donor inductive effect is preponderant.