80986-17-0Relevant academic research and scientific papers
Impact on hydrogenation catalytic cycle of the R groups Cyclic feature in "r-SMS-Phos"
Zupancic, Borut,Mohar, Barbara,Stephan, Michel
supporting information; experimental part, p. 3022 - 3025 (2010/08/19)
A series of R-SMS-Phos ligands was evaluated in the Rh(I)-catalyzed hydrogenation of a set of olefins showing a marked influence of the cyclic nature and structure of the R groups. Overall, cPen- and Cy-SMS-Phos performed efficiently, while Ph- and Bn-SMS-Phos exhibited slower kinetics and furnished lower ees also compared with C6F5CH2-SMS-Phos. The Rh(I)-(Cy-SMS-Phos) catalyst was screened under mild conditions displaying excellent enantioselectivities and high TOFs. Cases of catalysis under catalyst or substrate control were identified.
Esterase catalyzed regio-and enantio-selective hydrolysis of substituted carboxylates
Ozaki, Eiji,Sakashita, Keiichi
, p. 741 - 742 (2007/10/03)
Optically active α-substituted carboxylic acid derivatives were obtained with regio-and enantio-selective hydrolysis catalyzed by esterase from Pseudomonas putida MR-2068. Substrate specificities were summarized in empirical rule to predict the enantiopreferences of the esterase. High regio-selectivities were also discussed with binding models.
Enzymatic Preparation of Alkanedicarboxylic Acid Monoesters
Ozaki, Eiji,Uragaki, Toshitaka,Sakashita, Keiichi,Sakimae, Akihiro
, p. 539 - 540 (2007/10/03)
Hydrolysis of alkanedicarboxylic acid dimethyl esters using esterase from Pseudomonas putida MR-2068 gave exclusively pure monoesters.Hydrolytic activities were dependent on the carbon chain length of the substrates.This esterase also catalyzed enantio- and regio-selective hydrolysis of α-methylalkanedicarboxylic acid dimethyl esters.
