82469-58-7Relevant academic research and scientific papers
Reactions of a Graded Set of Radicals with N-Bromosuccinimide; Two Transition States
Tlumak, Robert L.,Skell Philip S.
, p. 7267 - 7274 (1982)
The reactions of N-bromosuccinimide with a series of radicals have been studied.These reactions fall into two categories, the more reactive radicals producing ?-succinimidyl and the less reactive radicals producing ?-succinimidyl.The threshold for the changeover from one reaction domain to the other occurs with radicals less reactive than secondary alkyls.These results are interpreted with two transition states, an in-line transition state for the more reactive radicals and an out-of-plane transition state for the less reactive radicals. An upper limit of 18 kcal/mol is established for the enthalpy difference, HS? - HS?.Two new methods for generating S? radicals are indicated.
