104170-02-7Relevant academic research and scientific papers
BIOMIMETIC RADICAL REARRANGEMENT OF A THIOESTER GROUP MEDIATED BY A COBALT COMPLEX, COBALOXIME
Tada, Masaru,Inoue, Kunimi,Sugawara, Keiji,Hiratsuka, Mitsunori,Okabe, Masami
, p. 1821 - 1824 (1985)
The possible involvement of cobalt in the radical reaarrangement of a thioester group was tested by using cobaloxime as a mimic of cobalamin.The coexistence of cobaloxime (II) species stimulates the rearrangement of the thioester group.A coordinative interaction between sulfur and cobalt is proposed for the assistance of this rearrangement.
Radico-catalysis: Possible involvement of a cobalt(II) complex in the free radical reactions of sulfur functions
Tada, Masaru
, p. 204 - 208 (2007/10/03)
A cobalt(II) complex is paramagnetic and can be coordinated with sulfur functions; the coordination complex delocalizes an unpaired electron from cobalt(II) to the sulfur functions such as thioester and vinyl sulfide. Thus, the generation of partial unpaired electron density on the sulfur functions induces or modifies the reactions of the organo free radical containing the sulfur function.
The effect of cobalt(II) complex on the reactivity of thioester in radical process
Tada, Masaru,Kaneko, Katsuyuki
, p. 843 - 844 (2007/10/03)
The 1,2-rearrangement of an (alkylthio)carbonyl group and the radical substitution on sulfur are stimulated by the coexisting cobalt(II) complex, generated intermolecularly or intramoleculary.
RADICAL REARRANGEMENT OF A THIOESTER MEDIATED BY COBALAMIN
Tada, Masaru,Inoue, Kunimi,Okabe, Masami
, p. 703 - 704 (2007/10/02)
Zinc-reduction of 2-(ethylthio)carbonyl-2-phenylpropyl bromide in the presence of cobalamin gave the products formed by the migration of the thioester group.The formation of olefinic products excludes an anion mechanism and the rearrengement is concluded
