Versatile synthesis of α, β-acetylenic ketones by oxidative nucleophilic addition of vanadium acetylides
作者:Toshikazu Hirao、Daisuke Misu、Toshio Agawa
DOI:10.1016/s0040-4039(00)84141-6
日期:1986.1
Treatment of aldehydes with vanadium acetylides generated from equimolar amounts of vanadium trichloride and acetylenic Grignard or lithium compounds gave α,β-acetylenicketones via oxidative nucleophilic addition.
Iron-Catalyzed Aerobic Oxidation of Alcohols: Lower Cost and Improved Selectivity
作者:Xingguo Jiang、Jinxian Liu、Shengming Ma
DOI:10.1021/acs.oprd.8b00374
日期:2019.5.17
oxidation reaction of alcohols toward aldehydes or ketones using catalytic amounts of Fe(NO3)3·9H2O, 4-OH-TEMPO, and NaCl has been developed. Compared with the former catalytic system with TEMPO developed in this group, the new protocol using 4-OH-TEMPO, which is much cheaper on an industrial scale, accomplished the transformation with a higher selectivity, especially for aliphatic alcohols toward aldehydes
An efficient synthesis of 2,5-disubstitutedfurans directly from alkynyl ketones has been developed via tandem gold(I)-catalyzed isomerization of alkynyl ketones to allenyl ketones and cycloisomerization. The key to the success of this chemistry is the use of a biphenyl-2-ylphosphine ligand featuring a critical remote tertiary amino group.