Journal of the American Chemical Society p. 7563 - 7567 (1989)
Update date:2022-08-04
Topics:
McPhee, D. J.
Campredon, M.
Lesage, M.
Griller, D.
Absolute rate constants for the reactions of the tert-butylthiyl radical with a variety of substrates were measured by using a combination of laser flash photolysis techniques and product studies.Reactions with organometallic substrates such as boranes, phosphines, and phosphites were extremely rapid with rate constants in the range 1E8 - 1E9 M-1 s-1.By contrast, addition to a simple olefin, oct-1-ene, was ca. 100 times less rapid.However, 1,1-diphenyl- and 1,1-dicyclopropylethylene were remarkably efficient traps for tert-butylthiyl and scavenged the radicalwith rate constants of 9.9*1E8 and 2.4*1E8 M-1 s-1, respectively.
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