3937-49-3Relevant articles and documents
Rhodium(I)-Catalyzed Hydrogenation of Olefins. The Documentation of Hydroxyl-Directed Stereochemical Control in Cyclic and Acyclic Systems
Evans, David A.,Morrissey, Michael M.
, p. 3866 - 3868 (1984)
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Immunomodulator
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Paragraph 0254-0258, (2021/05/22)
The invention discloses an immunomodulator, and particularly relates to a compound for inhibiting IL-17A and application of the compound serving as the immunomodulator in preparation of drugs. The invention discloses application of a compound shown in a formula I or a stereoisomer thereof in preparation of medicines for inhibiting IL-17A, and provides a new choice for clinically screening and/or preparing medicines for treating diseases related to IL-17A activity.
Hydrogenation of alkenes via cooperative hydrogen atom transfer
Kattamuri, Padmanabha V.,West, Julian G.
supporting information, p. 19316 - 19326 (2020/11/13)
Radical hydrogenation via hydrogen atom transfer (HAT) to alkenes is an increasingly important transformation for the formation of thermodynamic alkane isomers. Current single-catalyst methods require stoichiometric oxidant in addition to hydride (H-) source to function. Here we report a new approach to radical hydrogenation: cooperative hydrogen atom transfer (cHAT), where each hydrogen atom donated to the alkene arrives from a different catalyst. Further, these hydrogen atom (H?) equivalents are generated from complementary hydrogen atom precursors, with each alkane requiring one hydride (H-) and one proton (H+) equivalent and no added oxidants. Preliminary mechanistic study supports this reaction manifold and shows the intersection of metal-catalyzed HAT and thiol radical trapping HAT catalytic cycles to be essential for effective catalysis. Together, this unique catalyst system allows us to reduce a variety of unactivated alkene substrates to their respective alkanes in high yields and diastereoselectivities and introduces a new approach to radical hydrogenation.