Results 131 to 140 of about 178,442 (380)

Cycloadditions of cyclohexynes and cyclopentyne. [PDF]

, 2014
We report the strategic use of cyclohexyne and the more elusive intermediate, cyclopentyne, as a tool for the synthesis of new heterocyclic compounds. Experimental and computational studies of a 3-substituted cyclohexyne are also described.
Garg, Neil K, Houk, KN, Jiménez-Osés, Gonzalo, McMahon, Travis C, Medina, Jose M   +4 more
core   +2 more sources

Applications of QSPR and Machine Learning in Molecular Photonics

Advanced Optical Materials, EarlyView.
Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak, Platon P. Chebotaev, Mikhail A. Filatov   +2 more
wiley   +1 more source

Crystal structure of 2-(4-fluoro-3-methylphenyl)-5-{[(naphthalen-1-yl)oxy]methyl}-1,3,4-oxadiazole

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C20H15FN2O2, adopts an almost planar conformation. The oxadiazole ring makes dihedral angles of 13.90 (1) and 7.93 (1)° with the naphthalene ring system and benzene ring, respectively, while the naphthalene ring system and benzene ...
Muniyappan Govindhan, Kathavarayan Subramanian, Vijayan Viswanathan, Devadasan Velmurugan   +3 more
doaj   +1 more source

Ruthenium‐Catalyzed Azide‐Selenoalkyne Cycloadditions: A Combined Synthetic–Computational Study into Reaction Scope, Mechanism, and Origins of Regioselectivity

Advanced Synthesis &Catalysis, EarlyView.
A ruthenium‐catalyzed azide–alkyne cycloaddition (RuAAC) reaction is reported for the synthesis of selenium‐substituted triazole products. Reaction regioselectivity is dependent on the identity of the non‐selenium substituent of the alkyne, which challenges the perceived understanding of RuAAC regioselectivity.
Frances E. Bugden, Andrew D. Bage, Ashima Bajaj, Bin Wang, Fiona J. Gibson, Henry Stone, Yingjian Xu, Frank De Proft, Mercedes Alonso, Mark D. Greenhalgh   +9 more
wiley   +1 more source

5-(5-Aryl-1,3,4-oxadiazole-2-carbonyl)furan-3-carboxylate and New Cyclic <em>C</em>-Glycoside Analogues from Carbohydrate Precursors with MAO-B, Antimicrobial and Antifungal Activities

Molecules, 2012
Cyclization of acyclic <em>C</em>-glycoside derivatives <strong>1a,b</strong> to <strong>2a,b</strong> as the major isomers, and <strong>4a,b</strong> as the minor isomers were carried out.
Nagwa Said Abd El-Dayem, Galila Ahmed Yacout, Seham Yassen Hassan, Mohamed Mohamed El-Sadek   +3 more
doaj   +1 more source

Bulletin No. 14: Creating New Landscapes with Herbicides, A Homeowner\u27s Guide [PDF]

, 1963
A how-to-do-it handbook describing the formulations and techniques to be used in eliminating unwanted plants such as poison ivy. The use of herbicides in naturalistic landscaping, wildlife and woodlot management are included.
Goodwin, Richard H., Niering, William A.
core   +1 more source

Ligand selectivity in stabilising tandem parallel folded G-quadruplex motifs in human telomeric DNA sequences [PDF]

, 2014
Biophysical studies of ligand interactions with three human telomeric repeat sequences (d(AGGG(TTAGGG)n, n = 3, 7 and 11)) show that an oxazole-based ‘click’ ligand, which induces parallel folded quadruplexes, preferentially stabilises longer telomeric ...
Alex R. O. Cousins, Balkwill, Bejugam, Biffi, Brooks, De Armond, De Cian, Dougal Ritson, Feng, Fernando, Fletcher, Garner, Grand, Haider, Huppert, John E. Moses, Kim, Kumari, Lingner, Lipps, Malcolm F. G. Stevens, Mark S. Searle, Mergny, Moorhouse, Moorhouse, Nakamura, Neidle, Pallavi Sharma, Petraccone, Petraccone, Randall, Renciuk, Ritson, Searle, Siddiqui-Jain, Todd, Vorlickova, Wang, Xu   +38 more
core   +1 more source

N‐Containing Carbon Materials in Metal‐Free and Non‐Noble Metal Liquid Phase Heterogenous Catalysis

Advanced Synthesis &Catalysis, EarlyView.
Over 100 examples of non‐noble metal supported on N‐containing and metal‐free N‐containing carbon catalysts are discussed. Particular emphasis is put on how different N‐functionalities influence catalyst performance and stability. Preparation procedures are also examined, with a strong focus on how the heat treatment temperature influences N ...
Fulvio Varamo, Anna Katharina Beine
wiley   +1 more source

Optically pure heterobimetallic helicates from self-assembly and click strategies [PDF]

Single diastereomer, diamagnetic, octahedral Fe(II) tris chelate complexes are synthesised that contain three pendant pyridine proligands pre-organised for coordination to a second metal.
Clarkson, Guy J., Faulkner, Alan D., Howson, Suzanne E., Kaner, Rebecca A., Scott, Peter, Whitmore, Michael J.   +5 more
core   +1 more source

Chemical investigation of light induced DNA bipyrimidine damage and repair [PDF]

, 2011
In all organisms, genetic information is stored in DNA and RNA. Both of these macromolecules are damaged by many exogenous and endogenous events, with UV irradiation being one of the major sources of damage.
Carell, Thomas, Heil, Korbinian, Pearson, David   +2 more
core   +1 more source