The ways in which nucleophiles may react with cation radicals have recently been discussed in terms of the Dewar-Zimmerman rules. 3-6 A nucleophile which adds either slowly or not at all to a cation radical is thought to be forbidden by symmetry properties from undergoing bond-forming orbital over
Reaction of cellulose with chlorodimethylformiminium chloride and subsequent reaction with halide ions
β Scribed by Vigo, Tyrone L. ;Daigle, Donald J. ;Welch, Clark M.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1972
- Tongue
- English
- Weight
- 454 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0449-2986
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## Abstract The reactivity of the lithium halides in 83.3% pyridineβdimethylformamide changes from Cl^β^ > Br^β^ > I^β^ to Br^β^ > I^β^ to Br^β^ > I^β^ > Cl^β^ with increasing concentration of the salt from 0 to 0.35 M. This behaviour is explained by ion pairing which reduces the concentration of r
Vinylic S N 2 Reaction of 1-Decenyliodonium Salt with Halide Ions. -Reactions of title compound (I) with tetrabutylammonium halides are examined under various conditions and the mechanistic details are investigated. In the present reaction system no sign of formation of the primary vinyl cation is