Results 61 to 70 of about 109,430 (294)

Heterogenisation of ketone catalysts within mesoporous supports for asymmetric epoxidation

, 2013
The synthesis of the first mesoporous silica (150 Å) anchored carbohydrate-derived chiral ketone is described. This new heterogeneous catalyst has been shown to be effective in the asymmetric epoxidation of olefins by oxone.
Adam, Aggarwal, Amadori, Amadori, Armstrong, Beckwith, Bellamy, Bloch, Caprio, Chadwick, Cho, Corey, Denmark, Denmark, Denmark, Dondoni, Farina, Frohn, Goeddel, Heitbaum, Hutchings, Jacobsen, Johansson Seechurn, Johnson, Johnson, Jones, Katsuki, McMorn, Page, Page, Pedragosa-Moreau, Raja, Raynor, Ren, Romesberg, Ross, Sartori, Shephard, Shu, Song, Stearman, Thomas, Thomas, Thomas, Tian, Tian, Tian, van den Broek, Wang, Wang, Wang, Wang, Wong, Wong, Xia, Xiong, Xuereb, Yang, Yang, Zhao, Zhu   +60 more
core   +1 more source

Functionalization of Pyrene To Prepare Luminescent Materials—Typical Examples of Synthetic Methodology [PDF]

, 2016
Pyrene-based π-conjugated materials are considered to be an ideal organic electro-luminescence material for application in semiconductor devices, such as organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs) and organic ...
Ajami, Alfonso, Baldo, Barton, Batsanov, Beaupré, Beller, Bernhardt, Bolm, Cao, Caronna, Caronna, Casas-Solvas, Cerfontain, Chang, Chen, Chen, Cheng, Chercka, Coventry, Crawford, Dewar, Duong, Eliseeva, Espinosa, Feng, Feng, Feng, Feng, Feng, Feng, Feng, Figueira-Duarte, Figueira-Duarte, Figueira-Duarte, Fihri, Fuchibe, Gao, García, Gonell, Grandbois, Hashmi, Hong, Hu, Hu, Hu, Hu, Hu, Hu, Hu, Hu, Hu, Hu, Ibáñez, Inoue, Irvine, Ito, Iwasaki, Jeon, Ji, Ji, Jiang, Jiao, Kamtekar, Katz, Kawano, Keller, Kim, Kim, King, Klauk, Kohl, Kulisic, Kumar, Lambert, Lee, Lee, Letizia, Li, Li, Liu, Malashikhin, Marco, Mateo-Alonso, Miyasaka, Miyaura, Miyaura, Miyazawa, Miyazawa, Mkhalid, Moorthy, More, More, Moulin, Ni, Niko, Oberender, Olah, Olah, Paul, Qiao, Rajca, Rajca, Rathore, Reineke, Schmidt-Mende, Sonar, Sun, Sun, Szaciłowski, Tan, Tanaka, Tang, Tao, Tashiro, Thomas, Trattnig, Trattnig, Valdés, Venkataramana, Verbiest, Verbiest, Visbal, Vollmann, Xiao, Xu, Yamato, Yamato, Yamato, Yamato, Yamato, Yua, Zak, Zhang, Zhang, Zhao, Zwijnenburg, Zöphel, Zöphel, Zöphel   +139 more
core   +2 more sources

Characterization of the novel ene reductase Ppo-Er1 from paenibacillus polymyxa [PDF]

, 2020
Ene reductases enable the asymmetric hydrogenation of activated alkenes allowing the manufacture of valuable chiral products. The enzymes complement existing metal- and organocatalytic approaches for the stereoselective reduction of activated C=C double ...
Aregger, David, Buller, Rebecca, Peters, Christin   +2 more
core   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Catalytic enantioselective intramolecular hydroamination of alkenes using chiral aprotic cyclic urea ligand on manganese (II)

Nature Communications
Asymmetric catalysis for enantioselective intramolecular hydroamination of alkenes is a critical method in the construction of enantioenriched nitrogen-containing rings, often prevalent in biologically active compounds and natural products.
Bin Cui, Yuting Zheng, Hui Sun, Huijian Shang, Man Du, Yuxuan Shang, Cafer T. Yavuz   +6 more
doaj   +1 more source

Recent developments in transition metal-catalyzed asymmetric borrowing hydrogen catalysis

Tetrahedron Chem, 2023
Asymmetric Borrowing Hydrogen (BH) catalysis is a versatile, one-step approach for synthesizing enantioenriched amines/carbonyl derivatives from biomass-derived oxidized hydrocarbons with water as the sole by-product.
Nidhi Garg, Ishika Agrawal, Dhananjay Satav, Doppalapudi Vineet Kumar, Basker Sundararaju   +4 more
doaj   +1 more source

Infrared study of the selective oxidation of toluene and o-xylene on vanadium oxide/TiO2 [PDF]

, 1986
Infrared spectroscopy was used to obtain information on the mechanism of the selective oxidation of toluene and o-xylene over vanadium oxide catalysts. The interaction of these aromatic hydrocarbons and the products benzaldehyde and o-tolualdehyde with ...
Gellings, P.J., Hengstum, A.J. van, Hengstum-Nijhuis, S.M., Ommen, J.G. van, Pranger, J.   +4 more
core   +4 more sources

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Structural-Based Optimizations of the Marine-Originated Meridianin C as Glucose Uptake Agents by Inhibiting GSK-3β

Marine Drugs, 2021
Glycogen synthase kinase 3β (GSK-3β) is a widely investigated molecular target for numerous diseases, and inhibition of GSK-3β activity has become an attractive approach for the treatment of diabetes.
Shuwen Han, Chunlin Zhuang, Wei Zhou, Fener Chen   +3 more
doaj   +1 more source

Interaction between Experiments, Analytical Theories, and Computation [PDF]

, 2009
This article is a summary of a talk given at the ACS Centennial Symposium in Physical Chemistry in Philadelphia in 2008, updated with more recent studies. In keeping with the spirit of the symposium, the article is in part historical and in part a review
Marcus, R. A.
core   +1 more source