5325-67-7Relevant articles and documents
Catalytic asymmetric aldol reactions in aqueous media using chiral bis-pyridino-18-crown-6 - Rare earth metal triflate complexes
Hamada, Tomoaki,Manabe, Kei,Ishikawa, Shunpei,Nagayama, Satoshi,Shiro, Motoo,Kobayashi, Sho
, p. 2989 - 2996 (2007/10/03)
Catalytic asymmetric aldol reactions in aqueous media have been developed using Pr(OTf)3 and chiral bis-pyrdino-18-crown-6 1. In the asymmetric aldol reaction using rare earth metal triflates (RE(OTf)3) and 1, slight changes in the i
Lewis acid catalysis in aqueous media: Copper(II)-catalyzed aldol and allylation reactions in a water-ethanol-toluene solution
Kobayashi, Shu,Nagayama, Satoshi,Busujima, Tsuyoshi
, p. 959 - 960 (2007/10/03)
Cu(OTf)2 was found to be a stable Lewis acid in aqueous media and to activate carbonyl compounds effectively. Aldol reactions of silyl enol ethers with aldehydes and allylation reactions of tetraallyltin with carbonyl compounds proceeded smooth
Lanthanide Triflates as Water-Tolerant Lewis Acids. Activation of Commercial Formaldehyde Solution and Use in the Aldol Reaction of Silyl Enol Ethers with Aldehydes in Aqueous Media
Kobayashi, Shu,Hachiya, Iwao
, p. 3590 - 3596 (2007/10/02)
Lanthanide trifluoromethanesulfonates (triflates), especially ytterbium triflate (Yb(OTf)3), were found to be stable Lewis acids in water.In the presence of a catalytic amount of lanthanide triflate, formaldehyde in water solution (commercial formaldehyde