20795-51-1Relevant articles and documents
NOVEL METHOD FOR OXIDATION OF SECONDARY ALCOHOLS INTO KETONES WITH MOLECULAR OXIGEN BY USING COBALT(II) COMPLEX CATALYST
Yamada, Tohru,Mukaiyama, Teruaki
, p. 519 - 522 (1989)
The oxidation of secondary alcohols into the corresponding ketones using a catalytic amount of cobalt(II) complex under an oxygen atmosphere is described.The effect of additives shows that Molecular Sieves is effective to improve the yield of ketones.
Sulfonium ion-promoted traceless Schmidt reaction of alkyl azides
Ardiansah, Bayu,Kakiuchi, Kiyomi,Morimoto, Tsumoru,Tanimoto, Hiroki,Tomohiro, Takenori
, p. 8738 - 8741 (2021/09/08)
Schmidt reaction by sulfonium ions is described. General primary, secondary, and tertiary alkyl azides were converted to the corresponding carbonyl or imine compounds without any trace of the activators. This bond scission reaction through 1,2-migration of C-H and C-C bonds was accessible to the one-pot substitution reaction.
Cobalt-Catalyzed Asymmetric 1,4-Reduction of β,β-Dialkyl α,β-Unsaturated Esters with PMHS
Lu, Dongpo,Lu, Peng,Lu, Zhan
, p. 4861 - 4864 (2021/09/22)
A cobalt-catalyzed asymmetric reduction of β,β-dialkyl α,β-unsaturated esters with polymethylhydrosiloxane (PMHS) was reported to deliver the corresponding esters containing a chiral trialkyl carbon center at β-position with up to 97 % yield and 98 % ee. The chiral tridentate ligand oxazoline iminopyridine (OIP) could perform well for the asymmetric reduction instead of chiral bidentate ligands. This operationally simple protocol shows a broad scope of substrates using one equivalent of readily available PMHS as a cheap and easy-to-handle reductive reagent.