30504-93-9Relevant academic research and scientific papers
Cobalt-catalyzed cyclization with the introduction of cyano, acyl and aminoalkyl groups
Hori, Hiroto,Arai, Shigeru,Nishida, Atsushi
, p. 4783 - 4788 (2019/05/24)
An efficient synthesis of carbo-and heterocycles using CC, CO and CN bonds under cobalt catalysis is described. The substituents on olefins are key for controlling the regio-and chemoselectivity in the initial hydrogen atom transfer step and quaternary carbons are efficiently constructed under mild conditions. Cyclopropane cleavage and tandem cyclization give highly functionalized bicyclic skeletons in a single operation.
N-heterocyclic carbene-catalyzed hydroacylation of unactivated double bonds
Hirano, Keiichi,Biju, Akkattu T.,Piel, Isabel,Glorius, Frank
supporting information; experimental part, p. 14190 - 14191 (2010/02/15)
(Chemical Equation Presented) An intramolecular N-heterocyclic carbene (NHC)-catalyzed hydroacylation of unactivated double bonds is reported. Systematic variation of the catalyst structure revealed an N- mesitylthiazolylidene annulated with a seven-membered ring to be especially reactive. This NHC enables a unique C-C bond-forming reaction to afford substituted chroman-4-ones in moderate to excellent yields, even ones containing all-carbon quaternary centers.
Ring Construction by Zirconium-promoted Reductive Coupling of Nitriles with Alkenes
Mori, Miwako,Uesaka, Noriaki,Shibasaki, Masakatsu
, p. 1222 - 1224 (2007/10/02)
Intramolecular reductive coupling of nitrile with alkene units in the presence of zirconocene prepared from (C5H5)2ZrCl2 and BuLi gives cyclic ketones; the intermediary metallacycle prepared from the 2-cyano-N-allylaniline derivative is very reactive and
