74408-54-1Relevant academic research and scientific papers
The Allylic Acetoxylation of 1,1-Disubstituted Alkenes Catalyzed by a Palladium(II)/Monothiadiazole Ligand System
Jin, Can,Li, Xiaohan,Sun, Bin,Wang, Jiayang,Yang, Jin,Yu, Chuangming,Zhang, Xun,Zhuang, Xiaohui
supporting information, p. 1479 - 1483 (2019/07/15)
A palladium(II)/monothiadiazole ligand catalytic system and its application in catalyzing the acetoxylation of 1,1-disubstituted alkenes have been developed. With this newly designed monothiadiazole thioether ligand, the reaction showed a broad scope with respect to 1,1-disubstituted olefins, giving the corresponding products in yields of 30-86percent.
Preparation of Allylic Acetates from Simple Alkenes by Palladium(II)-Catalyzed Acetoxylation
Hansson, Sverker,Heumann, Andreas,Rein, Tobias,Akermark, Bjoern
, p. 975 - 984 (2007/10/02)
The scope and limitations of palladium-catalyzed allylic acetoxylation has been investigated, using benzoquinone-manganese dioxide as the reoxidation system.Unsubstituted cycloalkenes gave good to excellent yields of allylic acetates.Total yields were also good for many substituted cycloalkenes and for linear alkenes, but these substrates generally gave several isomeric acetates.The exploratory mechanistic studies show that the acetoxylation can proceed via both 1,2-acetoxypalladation and η3-allylpalladium complex formation.The keen balance between these processes depends on the structure of the alkene.
Oxidation by Cobalt(III) Acetate. Part 8. Effects of Substituents on Product Distributions in Oxidation of Aromatic Olefins by Cobalt(III) Acetate
Morimoto, Takashi,Hirano, Masao,Koyama, Tsuyoshi
, p. 1109 - 1116 (2007/10/02)
Oxidation of aromatic olefins by cobalt(III) acetate in acetic acid under nitrogen gave both allylic acetates and glycol monoacetates.Disubstituted olefins were oxidized by the oxidant to give predominantly allylic acetates.Glycol monoacetates were minor products except for the case of 1-phenylisobutene which was slowly oxidized to give the corresponding glycol monoacetate.In the oxidation of tri- and tetra-substituted olefins, the yield of glycol monoacetate increased at the expense of that of allylic acetate.A mechanism, in which the reaction proceeds through a Co-co-ordinated radical kation formed by an one-electron abstraction from olefin by cobalt(III) acetate, is suggested.
