The reactivities of perfluoroisopropyl and tert-butyl radicals towards hydrogen atom abstraction from triethylsilane

被引:0
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作者
Dolbier, WR [1 ]
Li, AR [1 ]
机构
[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA
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中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The rates of hydrogen abstraction from triethylsilane by the highly electrophilic 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 substantial reactivity enhancements, relative to perfluoro-n-alkyl radicals, derived from their enhanced electrophilicity and, in the latter case, from a much stronger forming C-H bond.
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页码:79 / 82
页数:4
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