Trityl Antimonate-Catalyzed Sequential Reactions of Epoxides with Silylated Nucleophiles. Rearrangement of Epoxides and C–C or C–O Bond Forming Nucleophilic Reaction onto the Intermediate Carbonyl Compounds
作者:Tsunehiro Harada、Teruaki Mukaiyama
DOI:10.1246/bcsj.66.882
日期:1993.3
In the presence of a catalytic amount of trityl hexafluoroantimonate, sequential reactions of epoxides with silylated nucleophiles, rearrangement of epoxides and C–C or C–O bond forming nucleophilic reaction onto the intermediate carbonylcompounds, proceed smoothly to afford the corresponding products in fairly good yields by one-pot procedure. Trityl hexafluoroantimonate (5 mol %) efficiently promotes
Photocatalytic Dehydrogenative Cross-Coupling of Alkenes with Alcohols or Azoles without External Oxidant
作者:Hong Yi、Linbin Niu、Chunlan Song、Yiying Li、Bowen Dou、Atul K. Singh、Aiwen Lei
DOI:10.1002/anie.201609274
日期:2017.1.19
Direct cross‐coupling between alkenes/R‐H or alkenes/RXH is a dream reaction, especially without external oxidants. Inputting energy by photocatalysis and employing a cobalt catalyst as a two‐electron acceptor, a direct C−H/X−H cross‐coupling with H2 evolution has been achieved for C−O and C−N bond formation. A new radical alkenylation using alkene as the redox compound is presented. A wide range of
A Convenient Method for the Preparation of Ethers from Epoxides. Trityl Hexafluoroantimonate-Catalyzed Sequential Reactions, Rearrangement and Reductive Condensation, of Epoxides
作者:Tsunehiro Harada、Teruaki Mukaiyama
DOI:10.1246/cl.1992.1901
日期:1992.10
In the presence of a catalytic amount of trityl hexafluoroantimonate, sequential reactions, rearrangement and reductive condensation, of epoxides proceed smoothly to give the corresponding ethers in fairly good yields. Trityl hexafluoroantimonate (5 mol%) efficiently accelerates the above two sequential reactions.
The present invention relates to compounds of formula (I) as properfume compounds. In particular, the present invention relates to a method to release a compound being a ketone or aldehyde of formula (II), a formate ester of formula (III) and/or an alcohol of formula (IV) by exposing the compound of formula (I) to an environment wherein it is oxidized. Moreover, the present invention relates to a perfuming composition and a perfume consumer product comprising at least one compound of formula (I).