219788-93-9Relevant academic research and scientific papers
Lanthanum triflate-catalysed allylation of aldehydes: Crucial activation by benzoic acid
Aspinall, Helen C,Bissett, James S,Greeves, Nicholas,Levin, Daniel
, p. 319 - 321 (2002)
Lanthanum triflate in combination with benzoic acid catalyses the allylation of aldehydes at low catalyst loading, without the need to activate the catalyst in advance.
Pd-containing organopolyoxometalates derived from Dawson polyoxometalate [P2W15V3O62]9-: Lewis acidity and dual site catalysis
Riflade, Benoit,Lachkar, David,Oble, Julie,Li, Joaquim,Thorimbert, Serge,Hasenknopf, Bernold,Lacote, Emmanuel
supporting information, p. 3860 - 3863 (2014/08/18)
Grafting of a palladium complex to the Dawson vanadotungstate polyanion [P2W15V3O62]9- via an organic ligand generates a large family of pincer-type hybrid polyoxometalates. The palladium-POM derivatives have dual catalytic properties. Unlike their parent inorganic polyanions, they catalyze allylations while retaining their oxidant character, which leads to single-pot dual site catalysis. This opens a new route for multicatalytic reactions.
One-pot, solvent-free allylation or propargylation of carbonyl compounds mediated by the in situ generated Zn-Ag couple
Yu, Changquan,Yang, Jian,Xia, Lingjie,Lu, Xiuyang
experimental part, p. 2484 - 2486 (2012/08/27)
Zn-Ag couple which was in situ generated by zinc being oxidized with catalytic silver acetate was successfully applied to the one-pot and solvent-free allylation or propargylation of carbonyl compounds, in which high yields, regioselective addition, waste minimization and simple operation can be achieved.
Homoallyl-cyclopropylcarbinyl cation manifold. Trimethylsilyl versus aryl stabilization
Creary, Xavier,O'Donnell, Benjamin D.,Vervaeke, Marie
, p. 3360 - 3368 (2008/02/03)
(Chemical Equation Presented) A series of E- and Z-1-aryl-5-trimethylsilyl- 3-buten-1-yl trifluoroacetates were solvolyzed in CD3CO2D, and rates of reaction as well as products derived from these reactions were determined. Hammett pl
Diastereoselective allylation and crotylation reactions of aldehydes with potassium allyl- and crotyltrifluoroborates under Lewis acid catalysis
Batey, Robert A.,Thadani, Avinash N.,Smil, David V.,Lough, Alan J.
, p. 990 - 998 (2007/10/03)
Potassium allyl- and crotyltrifluoroborates react with aldehydes in a process catalyzed by a variety of Lewis acids, to give the corresponding homoallylic alcohols. Of the Lewis acids examined, BF3·OEt2, used either stoichiometrically or catalytically, was found to most efficiently catalyze this reaction. The air and moisture stable potassium organotrifluoroborate salts react with a variety of alkyl, α- or β- substituted alkyl, and aryl aldehydes, and lead to the adducts in high yield and with high diastereoselectivity.
Potassium allyl- and crotyltrifluoroborates: Stable and efficient agents for allylation and crotylation
Batey, Robert A.,Thadani, Avinash N.,Smil, David V.
, p. 4289 - 4292 (2007/10/03)
Potassium allyl- and crotyltrifluoroborates react rapidly with aldehydes in the presence of BF3 · Et2O. These salts are stable to air and moisture, and lead to adducts in high yield and with high diastereoselectivity. The stereochemistry of the crotylated products is consistent with the reaction via allylboron difluoride and a Zimmerman-Traxler like transition state.
Ytterbium triflate catalysed allylation of aldehydes: An unusual benzoic acid induced acceleration
Aspinall, Helen C.,Greeves, Nicholas,McIver, Edward G.
, p. 9283 - 9286 (2007/10/03)
Addition of one equivalent of benzoic acid greatly enhances the efficiency of our ytterbium triflate catalyzed allylation of aldehydes with allyltributyltin in acetonitrile. Crucial modifications to reaction conditions result in a dramatically increased r
