Nickel-Catalyzed Isomerization/Allylic Cyanation of Alkenyl Alcohols
作者:Ying Ding、Jinguo Long、Feilong Sun、Xianjie Fang
DOI:10.1021/acs.orglett.1c02143
日期:2021.8.6
Herein reported is a nickel-catalyzed isomerization/allylic cyanation of alkenyl alcohols, which complements current methods for the allylic substitution reactions. The specific diphosphite ligand and methanol as the solvent are crucial for the success for this transformation. A gram-scale regioconvergent experiment and formal synthesis of quebrachamine demonstrate the high potential of this methodology
Highly Efficient Chromium-Catalyzed Oxidation of Secondary Benzylic Alcohols by Aqueous 70%<i>tert</i>-Butyl Hydroperoxide
作者:Jacques Muzart、Abdelaziz N'ait Ajjou
DOI:10.1055/s-1993-25941
日期:——
The oxidation of secondary benzylic alchols to ketones by the chromium(VI) oxide/tert-butyl hydroperoxide system is compatible wih the presence of methyl, halide, methoxy, acetoxy or nitro substituents on the aryl group and of an unsaturation on the alkyl side chain. Benzyl alchol led to a mixture of benzaldehyde and benzoic acid.