155486-11-6Relevant academic research and scientific papers
CHIRAL SENSOR
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Page/Page column 9, (2008/06/13)
An optically active compound having an unsaturated bond at an optically active binding site, wherein the unsaturated bond and a fluorescent substituent or a substituent capable of imparting fluorescence are united in a conjugated manner; and a chiral sens
Zirconium cation coordination in the borohydride-mediated synthesis of β-hydroxy-N-alkoxylamines
Williams, David R,Benbow, John W,Sattleberg, Thomas R,Ihle, David C
, p. 8597 - 8601 (2007/10/03)
Hydride reductions of oxime ethers to hydroxylamine derivatives are facilitated by the participation of neighboring hydroxyl groups. Precomplexation with zirconium cation in ether-methylene chloride solutions is effective for selective C=N bond reduction. The course for stereochemical control is dictated by Lewis acid coordination complexes of E- and Z-oximino ethers which lead to the preferred diastereofacial delivery of external hydride.
A general methodology for automated solid-phase synthesis of depsides and depsipeptides. Preparation of a valinomycin analogue
Kuisle, Oliver,Quinoa, Emilio,Riguera, Ricardo
, p. 8063 - 8075 (2007/10/03)
A general methodology is described that allows the solid-phase synthesis of depsides and depsipeptides from chiral α-hydroxy- and α-amino acids. The results of studies with different protecting groups for the α-hydroxy acids and coupling systems for depsi
Enantioselective Protonation of Samarium Enolates by a C2-Symmetric Chiral Diol
Takeuchi, Seiji,Ohira, Akiko,Miyoshi, Norikazu,Mashio, Hajime,Ohgo, Yoshiaki
, p. 1763 - 1780 (2007/10/02)
High enantioselectivity (up to 97percentee) have been achieved in the protonation of samarium enolates which were generated by SmI2-mediated cross-coupling reaction between unsymmetrical dialkylketene and allyl iodide, using, using a C2-symmetr
Asymmetric Radical Reaction in the Coordination Sphere. IV. Ruthenium(II)-Catalyzed Asymmetric Addition of Sulfonyl Chloride to 1-Phenylpropene
Kameyama, Masayuki,Kamigata, Nobumasa
, p. 648 - 650 (2007/10/02)
The asymmetric addition of methane- and p-toluenesulfonyl chloride to 1-phenylpropene catalyzed by Ru2Cl43 affords optically active 1:1 adducts, (+)-(1R,2RS)-1-chloro-2-methylsulfonyl-1-phenylpropane (2) and (+)-(1R,2RS)-1-chloro-1-phenyl-2-tosy
