Pd-catalyzed selective oxidation of allyl alcohols to access enones and enals
作者:Ruinan Zhang、Xuan Li、Zhenbo Gao
DOI:10.1016/j.tetlet.2022.153976
日期:2022.8
important in synthesis. Here we report a Pd-catalyzed method to selectively oxidize allylic alcohols to enones and enals at room temperature. 27 compounds, including enones, and enals, have been obtained with moderate to excellent yields. Meanwhile, this approach proceeds well on a preparative scale giving a good yield. This work allows the efficient and selective oxidization of various allylic alcohols
Sn(OTf)2-Catalyzed Allylic Substitution of Thiols to Allyl Alcohols: Access to Allyl Sulfides
作者:Zhenbo Gao、Yibo Chen
DOI:10.1055/s-0041-1738424
日期:2022.12
A novel method for the mild and efficient synthesis of allyl sulfides has been developed with allyl alcohols and thiols as substrates. The desired allyl sulfide was obtained using a catalytic amount of Sn(OTf)2 in dichloromethane at room temperature after a reaction time of 12 hours. A diverse range of allyl sulfides have been obtained with good to excellent yields, including both linear and cyclic
An efficient Ir(III) dihydride complex catalyzed 1,3-rearrangement of allylicalcohols was realized, affording the corresponding less easily accessible allylicalcohols regio- and stereoselectively in high yields from readily available starting materials. The reaction pathway involves a π-allyl-Ir(V) intermediate and the dihydride in Ir(III) dihydride complex acts as the hydrogen switch to modulate