“Dial Up and Lock In”: Asymmetric organo-Brønsted acid catalysis incorporating stable isotopes [PDF]
, 2016 An operationally simple organo-Brønsted-acid-catalyzed asymmetric and regioselective “dial up and lock in” of one or more stable isotopes into organic compounds is unknown.
Bachera, Dominika U. +7 more
core +1 more source
Asymmetric Burkholder inequalities in noncommutative symmetric spaces [PDF]
arXiv, 2022 In this paper, we establish noncommutative Burkholder inequalities with asymmetric diagonals in symmetric operator spaces. Our proof mainly relies on a new complex interpolation result on asymmetric vector valued spaces and a duality approach. We include as well the asymmetric versions of noncommutative Johnson-Schechtman inequalities.
arxiv
Asymmetric Synthesis of Propargylic and Allenic Silanes, Germanes, and Stannanes
Chemistry – An Asian Journal, EarlyView.Organotetrel compounds are important reagents with broad applications in chemical industries and natural product synthesis. This review provides a summary of strategies for the synthesis of propargylic and allenic organotetrels in their enantioenriched forms.
Hai Chang, Ruihan Wang, Yi‐Ming Wang
wiley +1 more source
Evolution in the Test-Tube as a Means to Create Selective Biocatalysts
CHIMIA, 2007 The development of chiral catalysts for use in synthetic organic chemistry is traditionally associated with progress in asymmetric transition metal catalysis or organocatalysis.
Manfred T. Reetz
doaj +1 more source
Strategies for the synthesis of enantiopure compounds focused on organocatalysis [PDF]
, 2012 Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32393The preparation of enantiomerically pure compounds (EPC) is a continuous social demand due to the clinical advantages that enantiopure drugs offer over the racemic forms. Here, the best
Arróniz, Carlos +1 more
core
Water-compatible hydrogen-bond activation: A scalable and organocatalytic model for the stereoselective multicomponent aza-henry reaction [PDF]
, 2016 A study was conducted to demonstrate that H-bond based asymmetric organocatalysis can be performed under the so-called in the presence of water conditions.
Armas, Pedro de +2 more
core +1 more source
Amyloid peptide mixtures: self-assembly, hydrogelation, nematic ordering and catalysts in aldol reactions [PDF]
, 2020 Morphological, spectroscopic and scattering studies of the self-assembly and aggregation process of mixtures of [RF]4 and P[RF]4 peptides (where: R = arginine; F = phenylalanine; P = proline), in solution and as hydrogels, were performed to obtain ...
Aguilar, Andrea +6 more
core +1 more source
Learning with Asymmetric Kernels: Least Squares and Feature Interpretation [PDF]
arXiv, 2022 Asymmetric kernels naturally exist in real life, e.g., for conditional probability and directed graphs. However, most of the existing kernel-based learning methods require kernels to be symmetric, which prevents the use of asymmetric kernels. This paper addresses the asymmetric kernel-based learning in the framework of the least squares support vector ...
arxiv
ChemCatChem, EarlyView.The efficient and robust enantioselective organocatalytic methodology was developed for the conjugate addition of isoxazol‐5(4H)‐ones to aurone‐derived azadienes. This approach provided products featuring benzofuran and isoxazole rings with high yields and enantioselectivities.
Ricardo Torán +4 more
wiley +1 more source
Mechanistic Insights in the Mode of Action of Bifunctional Pyrrolidine-Squaramide-derived Organocatalysts [PDF]
, 2016 The modes of catalytic action of three squaramide-derived bifunctional organocatalysts have been investigated using DFT methods. The [5+2] cycloaddition between oxidopyrilium ylides and enals has been used as model reaction.
Carrillo Fernández, María Luisa +6 more
core +2 more sources