24931-66-6Relevant academic research and scientific papers
ASYMMETRIC INDUCTION IN THE PALLADIUM-CATALYZED SULFONYLATION OF ALLYLIC SULFINATES AND ACETATES WITH CHIRAL PHOSPHINE LIGANDS
Hiroi, Kunio,Makino, Kunitaka
, p. 617 - 620 (1986)
Treatment of allylic (+/-)-p-toluenesulfinates with tetrakis-(triphenylphosphine) palladium in the presence of chiral phosphine ligands underwent allylic sulfinate-sulfone rearrangements to give the corresponding optically active allylic sulfones in high
Palladium-catalysed Allylic Sulphinate-Sulphone Rearrangements; Asymmetric Induction in the Palladium-catalysed Transfer of Chiral Sulphinates to Sulphones
Hiroi, Kunio,Kitayama, Ryuichi,Sato, Shuko
, p. 303 - 305 (1984)
The rearrangement of allylic sulphinates to sulphones is facilitated by palladium catalysis, treatment of the chiral trans- and cis-allyl sulphinates (S)-(-)-(1a), -(1c), and -(1e), and (S)-(-)-(1b) and -(1d) with a catalytic amount of the palladium catal
"Syn-Effect" in the Desilylation Reaction of γ-Silylated Allylic and Vinylic Sulfones
Guha, Samar Kumar,Ukaji, Yutaka,Inomata, Katsuhiko
, p. 1158 - 1159 (2007/10/03)
The desilylation reaction of γ-silylated allylic sulfones was found to proceed through γ-silylated (E)-vinylic sulfones to afford the corresponding allylic sulfones by treatment with DBU and H2O. The Z/ E ratio of the resulting allylic sulfones varied according to the γ-substituents of the γ-silylated sulfones. This stereo-chemical outcome was rationalized by "syn-effect".
Substituted Lithium (E)-3-Lithio-3-tosyl-2-propenolates: Useful Intermediates in Organic Synthesis
Najera, Carmen,Yus, Miguel
, p. 1491 - 1499 (2007/10/02)
The lithiation of substituted tosylated epoxides 7 derived from allylic sulfones with methyllithium leads to lithium (E)-3-lithio-3-tosyl-2-propenolates 5 in a stereoselective manner.The further reaction of these intermediates with different electrophilic
INDUCTION PAR LA LUMIERE DE L'OXYDATION DES COMPLEXES Η3-ALLYLPALLADIUM PAR L'OXYGENE MOLECULAIRE
Muzart, J.,Pale, P.,Pete, J.P.,Riahi, A.
, p. 731 - 739 (2007/10/02)
Irradiation at λ=366 nm of oxygenated solutions of η3-allylpalladium complexes leads to unsaturated carbonyl compounds.Substitution of the η3-allyl ligand by an electron withdrawing group could induce a regioselective oxidation of the allylic position farthest from this group.The efficiency of these reactions is sensible to the nature of the solvent.
Rearrangement of Some Allylic Sulphinate Esters to Allylic Sulphones. Ion-pair and Sigmatropic Shift Mechanisms
Knight, Derek J.,Whitham, Gordon H.,Williams, Jonathan G.
, p. 2149 - 2152 (2007/10/02)
The mechanism of rearrangement of a number of allylic sulphinate esters to the corresponding allylic sulphones on heating in formamide has been investigated as a function of substrate structure.Simple systems such as crotyl and α-methylallyl-sulphinate ap
1,3-Rearrangements of Allylic Sulphones
Lin, Peter,Whitham, Gordon H.
, p. 1102 - 1103 (2007/10/02)
Three sets of conditions which promote the 1,3-rearrangement of certain allylic sulphones are described.
