Results 111 to 120 of about 691,764 (293)

Immobilization of Candida Rugosa Lipase onto N-Vinyl-2-Pyyrolidone-Co-Styrene Hydrogel for Use in Enantioselective Esterification [PDF]

, 1999
Lipase from Candida rugosa was immobilized onto N-vinyl-2- pyyrolidone-co-styrene hydrogel (VP-co-ST) The crosslinker and the initiator used were EDMA and AIBN respectively Three different compositions of monomer were used, namely, (VP.ST)% , 1090 ...
Harun, Aiza
core  

Forging Fluorine-Containing Quaternary Stereocenters by a Light-Driven Organocatalytic Aldol Desymmetrization Process [PDF]

, 2017
Reported herein is a light-triggered organocatalytic strategy for the desymmetrization of achiral 2-fluoro-substi- tuted cyclopentane-1,3-diketones.
Ametamey, Balaraman, Banik, Beeson, Borissov, Brak, Brimioulle, Brunet, Dell'Amico, Dell'Amico, Eagan, Eder, Erb, Ford, Hajos, Hamashima, Hepburn, Hintermann, Ishimaru, Jeschke, Jiang, Kalow, Kalow, Katcher, Katcher, Klán, Kwiatkowski, Lozano, Ma, Marigo, Müller, Nakamura, O'Hagan, Partridge, Prakash, Prévost, Purser, Rauniyar, Reisman, Saadi, Sammes, Steiner, Taylor, Woerly, Yang, Yang, Yang, Zeng, Zhu, Zuend   +49 more
core   +2 more sources

Intermolecular Enantioselective Nickel‐Catalyzed Arylation of Un‐Activated C(sp3)─H Bond

Angewandte Chemie International Edition, EarlyView.
Ni: a new solution for asymmetric C(sp3)─H activation. The stereoselective synthesis of all‐carbon quaternary stereogenic centres is achieved via enantioselective C(sp3)─H arylation using a Ni‐BINOL‐derived catalyst. Rational catalytic cycle design uncovers a new reaction pathway that can efficiently induce chiral information during the stereoselective
Erwan Brunard, Fengjie Huang, Àlex Díaz‐Jiménez, Sofiya Kostiukovska, Joanna Wencel‐Delord   +4 more
wiley   +1 more source

Dynamic induction of enantiomeric excess from a prochiral azobenzene dimer under circularly polarized light

Chemical Science, 2014
We demonstrate the simultaneous induction of chirality and enantiomeric excess from a prochiral azobenzene dimer via a chiral regioisomer formed in situ upon CPL irradiation.
K. Rijeesh, P. K. Hashim, S. Noro, N. Tamaoki   +3 more
semanticscholar   +1 more source

Chiral Crystal Growth under Grinding

, 2008
To study the establishment of homochirality observed in the crystal growth experiment of chiral molecules from a solution under grinding, we extend the lattice gas model of crystal growth as follows. A lattice site can be occupied by a chiral molecule in
Becker R., Brandenburg A., Frank F. C., Japp F. R., Kipping F. S., Kondepudi D. K., Mauksch M., Noorduin W. L., Noorduin W. L., Ostwald W., Pasteur L., Plasson R., Saito Y., Saito Y., Saito Y., Saito Y., Sato I., Shibata R., Soai K., Uwaha M., Uwaha M., Viedma C.   +21 more
core   +1 more source

Stereospecific and chemoselective copper-catalyzed deaminative silylation of benzylic ammonium triflates [PDF]

, 2019
A method for the synthesis of benzylsilanes starting from the corresponding ammonium triflates is reported. Silyl boronic esters are employed as silicon pronucleophiles, and the reaction is catalyzed by copper(I) salts.
Gross, Benjamin M., Oestreich, Martin, Scharfbier, Jonas   +2 more
core   +1 more source

Valorization of fishing industry by‐products for biodiesel production: Unlocking the potential of residual fish oil

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Fishing waste and its by‐products, whether naturally occurring or generated by the processing industry, represent a significant opportunity for producing high‐value products. These often discarded or underutilized residues can be converted into various valuable products through advanced processing technologies. Among the potential products are
Patrick da Silva Sousa, Francisco Simão Neto, Paulo Gonçalves de Sousa Junior, Francisco Izaias da Silva Aires, Calebe da Rocha Silva, Kaiany Moreira dos Santos, Viviane de Castro Bizerra, Maria Alexsandra Sousa Rios, José Cleiton Sousa dos Santos   +8 more
wiley   +1 more source

A green and optimized approach for lactic acid recovery from fermented molasses using n‐butanol for local industrial applications in Côte d’Ivoire

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Lactic acid is a valuable organic compound with wide applications in the pharmaceutical, food, and biodegradable plastics industries. As Côte d’Ivoire seeks to strengthen its industrial capacity and promote sustainable practices, the development of efficient and environmentally benign methods for the recovery and purification of lactic acid ...
Asengo Gerardin Mabia, Chiara Danielli, Harinaivo Anderson Andrianisa, Leygnima Yaya Ouattara, Doudjo Soro, Fioretta Asaro, Lucia Gardossi, Kouassi Benjamin Yao   +7 more
wiley   +1 more source

Influence of Zn2+ and Oxygen Supply on Malic Acid Production and Growth of Aspergillus oryzae

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Malic acid is a valuable platform chemical traditionally derived from fossil‐based resources. Microbial cultivation with Aspergillus oryzae offers a sustainable alternative based on renewable feedstocks. In this study, a well‐established minimal medium for malic acid production, commonly used in previous research to ensure reproducibility, was
Lukas Hartmann, Anke Neumann, Dirk Holtmann, Katrin Ochsenreither   +3 more
wiley   +1 more source

Biotransformations of Substituted Phenylethanols and Acetophenones by Environmental Bacteria

Food Technology and Biotechnology, 2008
Whole cells of hydrocarbon-degrading bacteria, isolated from polluted sediments in the Santos Estuary (Baixada Santista, São Paulo, Brazil), were able to catalyse oxidoreduction reactions with various substituted phenylethanols and acetophenones as ...
Edna Kagohara, Vivian Helena Pellizari, João Valdir Comasseto, Leandro Helgueira Andrade, André Luiz Meleiro Porto   +4 more
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