71910-59-3Relevant academic research and scientific papers
Asymmetric aerobic oxidation of α-hydroxy acid derivatives catalyzed by reusable, polystyrene-supported chiral N-salicylidene oxidovanadium tert-leucinates
Salunke, Santosh B.,Babu, N.Seshu,Chen, Chien-Tien
, p. 1234 - 1240 (2011/06/26)
The direct immobilization of two different C-5-propargyl ether-modified, chiral N-salicylidene vanadyl(V) tert-leucinates onto 4-azidomethyl-substituted polystyrene by click chemistry was examined. Among the eight different solvents investigated, the resulting polystyrene-supported catalysts promote the asymmetric, aerobic oxidation of α-hydroxy (thio)esters and amides with enantioselectivities of up to 99% ee (selectivity factor up to 41) in chloroform. These polystyrene-supported catalysts can be readily recovered by filtration and reused for at least four consecutive runs without discernible loss of reactivity and enantioselectivity.
Asymmetric syntheses with a new optically active perhydronaphthalene based chiral auxiliary
Hamon,Holman,Massy-Westropp
, p. 9593 - 9604 (2007/10/02)
(1R,4aS,8S,8aS)-8-(5'-Methoxy-2'-methylphenyl)-8-methyldecahydro-1-nap hthalenol 3a is a highly efficient chiral auxiliary in the Diels-Alder addition of its acrylate ester 5 and in the DIBAL-H and Grignard reactions of its phenylglyoxylate ester 7.
Photocyclization of α-keto amides in homogeneous solution and aqueous cyclodextrin media. The role of zwitterions and diradicals in photoinduced electron transfer reactions
Chesta, Carlos A.,Whitten, David G.
, p. 2188 - 2197 (2007/10/02)
A mechanistic investigation of the photoreaction of the N,N-disubstituted benzoyl amides, PhCOCONR'R" 1-4 (1: R' = C2H5, R" = Ph; 2: R' = R" = C2H5; 3: R' = R" = CH2Ph; 4: R' = R" = i-C3Hs
