114672-01-4Relevant articles and documents
Formation of quaternary carbons through cobalt-catalyzed C(sp3)-C(sp3) Negishi cross-coupling
Palao, Eduardo,López, Enol,Torres-Moya, Iván,De La Hoz, Antonio,Díaz-Ortiz, ángel,Alcázar, Jesús
, p. 8210 - 8213 (2020/08/17)
Formation of all-carbon-substituted quaternary carbons is a key challenge in organic and medicinal chemistry. We report a cobalt-catalyzed C(sp3)-C(sp3) cross-coupling that allows for the introduction of benzyl, heteroarylmethylzinc and allyl groups to halo-carbonyl substrates. The cross-coupling reaction is selective for C(sp3)-over C(sp2)-halides, in contrast to most used catalytic metals, and allows access to novel scaffolds of pharmaceutical interest. NMR mechanistic studies suggest the presence of Co(0) complexes as catalytic species. This journal is
CYCLOBUTENEDIONE DERIVATIVES
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Page/Page column 83-84, (2010/12/17)
The present invention relates to compounds of the formula (I): to pharmaceutically acceptable salts therefore and to pharmaceutically acceptable solvates of said compounds and salts, wherein the substituents are defined herein; to compositions containing such compounds; and to the uses of such compounds in the treatment of various diseases, particularly inflammatory conditions.