Results 81 to 90 of about 7,590 (235)

Sunscreens - Which and what for? [PDF]

, 2005
It is well established that sun exposure is the main cause for the development of skin cancer. Chronic continuous UV radiation is believed to induce malignant melanoma, whereas intermittent high-dose UV exposure contributes to the occurrence of actinic ...
Ananthaswamy HN, Autier P, Azurdia RM, Birt DF, Bush JA, Damian DL, Darlington S, Gallagher RP, Gers-Balag H, Gil EM, Green A, Hallmans G, Hany J, Katiyar SK, Kipp C, Kricker A, Krutman J, Kunz PY, Lapidot N, Levy SB, Loeppky R, Mackie B, Mc Vean M, Mitchnik M, Montemarano AD, Noonan FP, Okereke CS, Perugini P, Petersen AB, Pinnell SR, Poh Agin P, Poon TS, Record IR, Rouabia M, Runger TM, Sayre RM, Scalia S, Schauder S, Schlumpf M, Schrader K, Schulz J, Schwarz VA, Stern RS, Tebbe B, Wamer W, Wang ZY, Wolf R, Wulf HC, Yarosh D, Zhao J   +49 more
core   +1 more source

Metal‐Free Covalent Organic Frameworks for Photocatalytic CO2 Reduction

ChemistryEurope, EarlyView.
This review presents an environmentally sustainable strategy to address the critical issue of escalating atmospheric CO2 levels. It explores the application of metal‐free covalent organic frameworks in a photocatalytic approach, offering a green and efficient strategy for carbon dioxide reduction and contributing to climate change mitigation.
Supriti Dutta, Akhtar Alam, Pekham Chakrabortty, Pradip Pachfule   +3 more
wiley   +1 more source

Chemoselective C-benzoylation of phenols by using AlCl3 under solvent-free conditions

Bulletin of the Chemical Society of Ethiopia, 2015
Substituted phenols were chemo-selectively reacted with benzoylchloride in presence of aluminum chloride under solvent-free condition to afford the corresponding 2'-hydroxy aryl benzophenones in excellent yields (72-96%).
S. V. Gaikwad, B. R. Nawghare, P. D. Lokhande   +2 more
doaj   +1 more source

Photo-antagonism of the GABAA receptor [PDF]

, 2014
Neurotransmitter receptor trafficking is fundamentally important for synaptic transmission and neural network activity. GABAA receptors and inhibitory synapses are vital components of brain function, yet much of our knowledge regarding receptor mobility ...
A Sali, A Triller, B Frolund, C Notredame, CG Wermuth, CL Padgett, CM Houston, D Belelli, DA Wagner, DM Kullmann, E Sigel, EF Pettersen, EG Steward, EM Schneider Gasser, EO Mann, F Iqbal, G Jones, G Nyiri, H Kiefer, H Mohler, H Zhong, J Amin, J Isaacson, JG Newell, JG Newell, JH Holden, JJ Chambers, JM Fritschy, JQ Kang, JT Kittler, K Ramamoorthi, L Dubinsky, LB Kier, M Ernst, M Heaulme, M Mortensen, M Mortensen, M Mortensen, M Mortensen, MA Simmonds, MC Ashby, N Zacharias, NG Bowery, O Arunlakshana, P Thomas, PS Miller, R Sathyapriya, RW Olsen, S Ueno, SB Hansen, SC Lummis, SE Westh-Hansen, SE Westh-Hansen, SJ Moss, T Klausberger, T Klausberger, TC Turek, U Resch-Genger, Y Bogdanov, Y Chang   +59 more
core   +1 more source

4-(Chloromethyl)benzophenone

Acta Crystallographica Section E Structure Reports Online, 2007
In the title compound {systematic name: [4-(chloro­methyl)­phenyl]­(phenyl)­methanone}, C14H11ClO, the two benzene rings form a dihedral angle of 58.10 (8)°. The crystal packing is stabilized by inter­molecular C—H⋯π inter­actions which link the mol­ecules into a ribbon along the a axis.
Yang-Ling Zang, Guo-Liang Wu, Wei-Jian Xu, Chun-Hua Yang   +3 more
openaire   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

Arene Incorporation and Ring Expansion in the Thermal Decomposition of a Divanadium(III) Complex With Four Bridging Methyl Groups

Chemistry – A European Journal, EarlyView.
Thermolysis of [{VCp*(µ‐CH3)2}2] (Cp* = η5‐C5Me5) in hexane leads to a tetranuclear cube‐type methylidene complex [{VCp*(µ3‐CH2)}4], while in benzenic solvents C6H5R produces the formal insertion of a CH fragment into the six‐membered aromatic ring of a solvent molecule to give trovacene derivatives with η7‐cycloheptatrienyl ligands [VCp*(η7‐C7H6R ...
Adrián Calvo‐Molina, Rodrigo González‐Prieto, Jesús Jover, Adrián Pérez‐Redondo, José Luis Priego, Carlos Yélamos   +5 more
wiley   +1 more source

Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS

Journal of Chemistry, 2015
Literature lacks publications about polar compounds content in infusion or guava leaves tea. Because of that, a comparison between different times of infusion and a conventional ultrasound aqueous extract was carried out.
Elixabet Díaz-de-Cerio, Vito Verardo, Ana María Gómez-Caravaca, Alberto Fernández-Gutiérrez, Antonio Segura-Carretero   +4 more
doaj   +1 more source

Kinetics of the reactions of the acid anhydrides with aromatic amines in aprotic solvents [PDF]

Work has revealed that diamine derivatives of diphenylmethane (IV), diphenyl ether (V), benzophenone (IV), fluorene (VII), and fluorenone (VIII) polymerizations with pyromellitic dianhydride in DMA were dependent on the basicity of the amine compound ...
Mason, J. G., Sugg, E.
core   +1 more source

Comparison of stabilization by Vitamin E and 2,6-di-tert-butylphenols during polyethylene radio-thermal-oxidation [PDF]

, 2014
This paper reports a compilation of data for PE+Vitamin E and 2,6-di-tert-butylphenols oxidation in radio-thermal ageing. Data unambiguously show that Vitamin E reacts with P° and POO° whereas 2,6-di-tert-butyl phenols only react with POO°.
RICHAUD, Emmanuel
core   +6 more sources