41976-80-1Relevant articles and documents
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
Harada, Tsunehiro,Mukaiyama, Teruaki
, p. 882 - 891 (1993)
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 carbonyl compounds, proceed smoothly to afford the corresponding products in fairly good yields by one-pot procedure.Trityl hexafluoroantimonate (5 mol percent) efficiently promotes the above plural sequential reactions.
Structural Dependence on Photoaddition of Methanol to Arylalkenes. Solvent and Additive Effects on Photoinduced Electron Transfer Reaction
Mizuno, Kazuhiko,Nakanishi, Isao,Ichinose, Nobuyuki,Otsuji, Yoshio
, p. 1095 - 1098 (1989)
The 9,10-dicyanoanthracene(DCA)-sensitized photoaddition of methanol to arylalkenes occurred both in benzene and acetonitrile to give the corresponding anti-Markownikoff type adducts.The efficiency of the photoreaction depended on the solvents and the str
The Concept of Photozymes: Short Peptides with Photoredox Catalytic Activity for Nucleophilic Additions to α-Phenyl Styrenes
Sack, Daniel,Wagenknecht, Hans-Achim
, p. 6400 - 6407 (2021/11/18)
Conventional photoredox catalytic additions of alcohols to olefins require additives, like thiophenol, to promote back electron transfer. The concept of “photozymes” assumes that forward and backward electron transfer steps in a photoredox catalytic cycle
Photocatalytic Dehydrogenative Cross-Coupling of Alkenes with Alcohols or Azoles without External Oxidant
Yi, Hong,Niu, Linbin,Song, Chunlan,Li, Yiying,Dou, Bowen,Singh, Atul K.,Lei, Aiwen
supporting information, p. 1120 - 1124 (2017/01/18)
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 H2evolution 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 aliphatic alcohols—even long chain alcohols—are tolerated well in this system, providing a new route to multi-substituted enol ether derivatives using simple alkenes. Additionally, this protocol can also be used for N-vinylazole synthesis. Mechanistic insights reveal that the cobalt catalyst oxidizes the photocatalyst to revive the photocatalytic cycle.