Results 11 to 20 of about 831,285 (343)

Free radical 5-exo-dig cyclization as the key step in the synthesis of bis-butyrolactone natural products: experimental and theoretical studies [PDF]

, 2011
Radical cyclization reactions were performed by 5-exo-dig mode to yield cis-fused bicyclic systems, leading to the synthesis of bis-butyrolactone class of natural products.
Allinger, Baldwin, Beckwith, Beckwith, Beckwith, Blot, Cossy, Curtiss, Devoju Harinada Chary, Florian Achrainer, Gangavaram V. M. Sharma, Hendrik Zipse, Lii, Lii, Nagula Chandramouli, Sateesh Patrudu, Sharma, Sharma, Sharma, Sharma, Sharma, Sharma, Srikrishna, Yu   +23 more
core   +1 more source

The Effect of N-Terminal Cyclization on the Function of the HIV Entry Inhibitor 5P12-RANTES. [PDF]

, 2017
Despite effective treatment for those living with Human Immunodeficiency Virus (HIV), there are still two million new infections each year. Protein-based HIV entry inhibitors, being highly effective and specific, could be used to protect people from ...
F Nguyen, Anna, J LiWang, Patricia, Jian, Mike, S Schill, Megan   +3 more
core   +2 more sources

Carbocations and the Complex Flavor and Bouquet of Wine: Mechanistic Aspects of Terpene Biosynthesis in Wine Grapes. [PDF]

, 2015
Computational chemistry approaches for studying the formation of terpenes/terpenoids in wines are presented, using five particular terpenes/terpenoids (1,8-cineole, α-ylangene, botrydial, rotundone, and the wine lactone), volatile compounds (or their ...
Pemberton, Ryan P, Tantillo, Dean J, Wedler, Henry B   +2 more
core   +2 more sources

Asymmetric Nazarov cyclizations [PDF]

Tetrahedron, 2011
The Nazarov cyclization1 is described as the 4 π electron conrotatory cyclization of a pentadienyl cation. The past 20 years have brought resurgent interest in this reaction most likely due to the realization that it can provide rapid and efficient access to multisubstituted cyclopentenones with excellent stereochemical control at two (or even three ...
Naoyuki, Shimada, Craig, Stewart, Marcus A, Tius   +2 more
openaire   +2 more sources

Switching the stereochemical outcome of 6-endo-trig cyclizations; Synthesis of 2,6-Cis-6-substituted 4-oxopipecolic acids [PDF]

, 2012
A base-mediated 6-endo-trig cyclization of readily accessible enone-derived α-amino acids has been developed for the direct synthesis of novel 2,6-cis-6- substituted-4-oxo-L-pipecolic acids. A range of aliphatic and aryl side chains were tolerated by
Agami C., Alastair A. Cant, Andrew Sutherland, Bernasconi R., Boger D. L., Cant A. A., Carbonnel S., Fowler L. S., Fowler L. S., Golubev A., Graham L. Simpson, Gutiérrez M. C., Hans Martin Senn, He M., Ireland R. E., Jatoi W. B., Johnson F., Jung J.-C., Kadouri-Puchot C., Lamarre D., Lindsay S. Fowler, Marin J., Mark Daly, Merino P., Occhiato E. G., Occhiato E. G., Purkayastha N., Purkayastha N., Romeo J. T., Romo D., Rudisill D. E., Schenk V. W., Smith A. B., Smith A. B., Smith A. B., Swindells D. C., Tanaka H., Vanderhaeghe H., Weigend F., Zacharius R. M., Zhao Y., Zhao Y.   +41 more
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Urine Metabolite Profiling of Human Colorectal Cancer by Capillary Electrophoresis Mass Spectrometry Based on MRB

Gastroenterology Research and Practice, 2012
Aim. The study was to investigate the metabolic profile of urine metabolites and to elucidate their clinical significance in patients with colorectal cancer. Methods. Colorectal cancers from early stage and advanced stage were used in this study.
Jin-Lian Chen, Jing Fan, Liu-Shui Yan, Hui-Qin Guo, Jing-Jing Xiong, Yan Ren, Jun-Duo Hu   +6 more
doaj   +1 more source

Sequence Dependence of Transcription Factor-Mediated DNA Looping [PDF]

, 2012
DNA is subject to large deformations in a wide range of biological processes. Two key examples illustrate how such deformations influence the readout of the genetic information: the sequestering of eukaryotic genes by nucleosomes, and DNA looping in ...
Barry, Bellomy, Bellomy, Brenowitz, Butler, Chen, Chen, Cloutier, Cloutier, Drew, Du, Echols, Edelman, Finzi, Frank, Garcia, Geggier, Han, Hirsh, Hogan, Hsieh, Jacobson, Krämer, Lewis, Lowary, Luger, Luijsterburg, Martin Lindén, Matthews, Mehta, Milstein, Morgan, Müller, Newman, Normanno, Oehler, Olson, Peters, Plischke, Ptashne, Rippe, Rob Phillips, Rutkauskas, Saiz, Schafer, Schleif, Segall, Shimada, Stephanie Johnson, Swigon, Tolhuis, Towles, Vanzi, Villa, Watson, Whitson, Whitson, Widom, Wong, Xu, Yin, Zhan, Zhang   +62 more
core   +4 more sources

CYCLIZATION AND HYDROGENATION OF (+)-CITRONELLAL TO MENTHOLS OVER ZnBr₂ AND Ni CATALYSTS SUPPORTED ON γ-Al₂O₃

Indonesian Journal of Chemistry, 2010
Two steps transformation of (+)-citronellal, cyclization and hydrogenation, on ZnBr2/γ-Al2O3 and Ni/γ-Al2O3 catalyst have been realized with the selectivity to cyclization products (isopulegols) was very high (yield up to ~92.58%) over ZnBr2/γ-Al2O3 ...
Elvina Dhiaul Iftitah, M. Muchalal, Wega Trisunaryanti, Ria Armunanto   +3 more
doaj   +1 more source

Study on by-products synthesis of powder coating polyester resin catalyzed by organotin

e-Polymers, 2023
In the production of powder-coating polyester, a strong odor emanates from the water, prompting us to investigate its composition and origin. We studied the process of powder coating epoxy/polyester 50/50, which employs butyl tin tris (2-ethyl hexanoate)
Yang YuCheng, Di Chao, Wang TingWei
doaj   +1 more source

Surface Modification of Ga-Doped-LLZO (Li₇La₃Zr₂O₁₂) by the Addition of Polyacrylonitrile for the Electrochemical Stability of Composite Solid Electrolytes

Energies, 2023
Composite solid electrolytes (CSEs), often incorporating succinonitrile (SCN), offer promi I confirm sing solutions for improving the performance of all-solid-state batteries.
Hyewoo Noh, Daeil Kim, Wooyoung Lee, Boyun Jang, Jeong Sook Ha, Ji Haeng Yu   +5 more
doaj   +1 more source