Chapter 4: Synthesis and Structure of Transition Metal-Menthyl Complexes. A Grignard reagent derived from (-)-menthyl chloride has been reported to be a 1:1 mixture of menthyl magnesium chloride and neomenthyl magnesium chloride. As part of a broader study, addition of an excess of this ...
Various aspects of the reaction of a chiral catalyst or reagent with a racemic or enantiopure substrate 来自 mendeley.com 喜欢 0 阅读量: 28 作者: HB Kagan 摘要: Competitive reactions acting on a racemic substrate in presence of a chiral controller. P 1 and P′ 1 (P 2 and P′ 2) ...
regardless of the context or details. substrates in other sciences a substrate is the medium in which a chemical reaction occurs or the reagent in a process that provides a surface for absorption. in yeast fermentation, for example, the substrate on which the yeast operates to produce carbon di...
PROTOCOL Substrate activity screening (SAS): a general procedure for the preparation and screening of a fragment-based non-peptidic protease substrate library for inhibitor discovery Andrew W Patterson1, Warren J L Wood1,2, & Jonathan A Ellman1 1Department of Chemistry, University of California, ...
What is a “substrate”?The underlying substances or layers are termed assubstrate. The definitions of a substrate in various fields of knowledge vary. In major science fields such aschemistry, it is the major compound that reacts with the reagent under a specified set of reaction parameters. ...
Ernest Maréchal, in Comprehensive Polymer Science and Supplements, 1989 1.7.1 Polymeric Reactants According to Mathur et al.263 a polymeric reactant is a substance possessing the physical properties of high polymers as well as the chemical properties of the attached reagent. Polymeric reactants ar...
Fig. 4. (a) Tubing cartridge loaded with reagent, containing sample, wash buffers and LC; (b) Schematic illustration of solutions delivery due to the negative pressure applied; (c) Sensing mechanism caused by disruption in the LC alignment because of immune-binding between anti-immunoglobulin G...
B. Practical enantioselective Diels–Alder and aldol reactions using a new chiral controller system. J. Am. Chem. Soc. 111, 5493–5495 (1989). Article CAS Google Scholar Narasaka, K. et al. Asymmetric Diels–Alder reaction catalysed by a chiral titanium reagent. J. Am. Chem. Soc. 111,...
23 α-galactosidase and investigation of its substrate specificity. Access through your organization Check access to the full text by signing in through your organization. Access through your organization Section snippets Chemicals and reagents All inorganic chemicals and organic solvents were reagent ...
Addition of methyl Grignard reagent to (–)-20 led to tertiary alcohol 51 in a good yield with 95% ee. Finally, selective hydrogenation of allene moiety provided 52 in 96% yield and 96% ee. Interestingly, the reaction of 20 with TfOH in dichloromethane, a racemic condensed polycyclic ...