THE REACTIVITIES OF PERFLUOROISOPROPYL AND TERT-BUTYL RADICALS TOWARDS HYDROGEN-ATOM ABSTRACTION FROM TRIETHYLSILANE

Authors
DOLBIER WR LI AR
Citation
Wr. Dolbier et Ar. Li, THE REACTIVITIES OF PERFLUOROISOPROPYL AND TERT-BUTYL RADICALS TOWARDS HYDROGEN-ATOM ABSTRACTION FROM TRIETHYLSILANE, Perkin transactions. 2, (1), 1998, pp. 79-82
Citations number
21
Categorie Soggetti
Chemistry Physical","Chemistry Inorganic & Nuclear
Journal title
Perkin transactions. 2 → ACNP
ISSN journal
03009580
Issue
1
Year of publication
1998
Pages
79 - 82
Database
ISI
SICI code
0300-9580(1998):1<79:TROPAT>2.0.ZU;2-C
Abstract
The rates of hydrogen abstraction from triethylsilane by the highly el ectrophilic perfluoroisopropyl and perfluoro-tert-butyl radicals have been obtained through competition experiments, These rates, 3.6 x 10(6 ) and 2.4 x 10(8) M-1 s(-1), respectively, are indicative of substanti al reactivity enhancements, relative to perfluoro-n-alkyl radicals, de rived from their enhanced electrophilicity and, in the latter case, fr om a much stronger forming C-H bond.