17199-94-9Relevant academic research and scientific papers
Induced salt-responsive circularly polarized luminescence of hybrid assemblies based on achiral Eu-containing polyoxometalates
Shi, Nan,Tan, Junyan,Wan, Xinhua,Guan, Yan,Zhang, Jie
supporting information, p. 4390 - 4393 (2017/04/21)
The first circularly polarized luminescence of achiral Eu-containing polyoxometalates (POMs) was realized by electrostatic assembly with a diblock copolymer containing bulky chiral pendants, and was unexpectedly enhanced by NaCl. The induced chirality is attributed to static coupling causing chiral torsion of POMs and dynamic coupling between organic chiral chromophores and an Eu emission center.
Lipase-mediated enantioselective acylation of alcohols with functionalized vinyl esters: acyl donor tolerance and applications
Chenevert, Robert,Pelchat, Nicholas,Morin, Pierre
experimental part, p. 1191 - 1196 (2009/09/27)
Enzymatic acylation is commonly used for the kinetic resolution of alcohols and amines. The simple acyl group introduced during the enzymatic reaction is usually removed or replaced by another group. Retention of more complex acyl moieties as part of the target structures would be a more efficient strategy. We have studied the enantioselective acylation of a model alcohol substrate, 1-phenylethanol, with vinyl esters bearing various functionality on the acyl moieties in the presence of three lipases (Candida antarctica, Candida rugosa and Burkholderia cepacia) frequently used in organic synthesis. C. antarctica lipase is the most versatile lipase for this type of biotransformations. We applied this strategy to the synthesis of a protein kinase C ligand and a natural product, phoracantholide.
Pseudomonas Cepacia Lipase catalysed synthesis of the chiral methacrylate monomers by kinetic resolution of the secondary alcohols: Effect of the substrate structure on enantioselectivity
Athawale, Vilas,Manjrekar, Narendra
, p. 225 - 226 (2007/10/03)
Optically active methacrylate monomers of secondary alcohols have been synthesised using oxime methacrylate as an acylating agent. The type of solvent used for the reaction had a profound effect on the reaction time and enantioselectivity. Various aryl, cyclic and linear secondary alcohols were screened for their structural effect on enantioselectivity. The nature and position of the substituents in the case of aryl carbinols, had a remarkable effect on the conversion and enantioselectivity, whereas, in the case of linear alcohols, the enantioselectivity was influenced by the increase in the chain length.
Kinetic Resolution of Racemic α-Methylbenzyl Methacrylate: Asymmetric Selective Polymerization Catalyzed by Grignard Reagent-(-)-Sparteine Derivative
Okamoto, Yoshio,Suzuki, Koichi,Kitayama, Tatsuki,Yuki, Heimei,Kageyama, Hiroyuki,at al.
, p. 4618 - 4624 (2007/10/02)
Enantiomer-selective polymerization of racemic (RS)-α-methylbenzyl methacrylate (MBMA) was investigated with homogeneous Grignard reagent-(-)-sparteine and its derivative catalysts in toluene at -78 deg C.A variety of Grignard reagents (RMgX) were combine
