Results 101 to 110 of about 3,360,519 (226)

Effect of Magnesium Phosphide, an Alternative to Methyl Bromide, on Dried Fig Quality

, 2008
3rd International Symposium on Fig -- MAY 16-20, 2005 -- Algarve, PORTUGALMethyl bromide (MB) more widely known as a soil fumigant is an important pesticide used in dried fruit sector to control storage pests.
Meyvaci, K. B., Aksoy, U., Sen, F.
core   +1 more source

Flavin Catalysts in Organic Synthesis

Angewandte Chemie, EarlyView.
Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley   +2 more sources

Aktivierung von Metallkomplexen durch Ultraschallwellen für eine gezielte Krebstherapie

Angewandte Chemie, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source

Deprotonation and Alkylation of Weakly Acidic C(sp3)─H Bonds Through In Situ Generation of a Strong Hydride Base From 1,1,3,3‐Tetramethyldisiloxane and Potassium tert‐Butoxide

Angewandte Chemie, EarlyView.
The use of 1,1,3,3‐tetramethyldisiloxane (TMDSO) and potassium tert‐butoxide enables direct alkylation of weakly acidic carbon–hydrogen bonds with alkyl halides. Experimental and computational studies support the formation of a substrate‐associated hydride‐like base, providing a single‐step alternative to the classical deprotonation and electrophile ...
Piers St. Onge, Brandon White, Han Yao, Travis Dudding, Stephen G. Newman   +4 more
wiley   +2 more sources

Methyl bromide and ozone depletion

, 2014
Several organic gases have been implicated in the depletion of the ozone layer. Most attention has been focused on the CFCs and haloes, but methyl bromide has now come under increasing scrutiny. Methyl bromide is a highly toxic pesticide. It has..
Technical Centre for Agricultural and Rural Cooperation
core   +1 more source

Photometallobiocatalytic Asymmetric Radical‐Mediated Cross‐Coupling of Organotrifluoroborate Salts and Pyridotriazoles

Angewandte Chemie, EarlyView.
An enantioselective photometallobiocatalytic cross‐coupling of pyridotriazoles and secondary alkyltrifluoroborate salts is developed. Cooperative catalysis using eosin B and an engineered protoglobin combines visible‐light‐mediated radical generation with enzymatic metal carbenoid activation, affording valuable N‐heterocyclic products in excellent ...
Huanan Wang, Binh Khanh Mai, Xingjie Zhang, Chongtao Li, Peng Liu, Yang Yang   +5 more
wiley   +2 more sources

Methyl Iodide as an alternative to Methyl Bromide in Tobacco Seedbeds Nematodes control

, 2015
Plant parasitic nematodes cause an estimated 120 billion US dollars in crop losses globally per annum, of which $50 billion is accredited to tobacco. A need to control these notorious plant pests (nematodes) arose early in the last century and Methyl ...
Dube, Victor
core  

Supramolecular Mechanophore Additives Enable Mechanochromic Hydrogels

Angewandte Chemie, EarlyView.
A supramolecular loop‐forming mechanophore featuring a quencher and an emitter is incorporated as a water‐soluble macromolecular additive into hydrogels. In the stress‐free state, intramolecular charge‐transfer interactions fold the loop and quench fluorescence.
Iulia Scarlat, Jess M. Clough, Christoph Weder   +2 more
wiley   +2 more sources

1,4‐Brook Rearrangement of β‐Silyl Allylic Alcohols: Trisubstituted Alkenes by Copper‐Mediated Stereoretentive ipso‐Substitution Reactions

Angewandte Chemie, EarlyView.
To fully leverage the power of the ruthenium‐catalyzed trans‐hydrosilylation of propargyl alcohols, it was necessary to develop a practical and robust method for the activation of those products that carry the silyl group distal to the hydroxy substituent.
Paul Haf‐Moths, Jack L. Sutro, Alois Fürstner   +2 more
wiley   +2 more sources

Ionothermal synthesis of gallophosphate molecular sieves in 1-alkyl-3-methyl imidazolium bromide ionic liquids

, 2009
Gallophosphate (GaPO4) molecular sieves were ionothermally prepared in 1-alkyl-3-methyl imidazolium bromide ionic liquids (ILs) with alkyl chain length varying from 2 to 6 carbons for the first time.
Wang, Bingchun, Xu, Yunpeng, Xu, Renshun, Wen, Guodong, Tian, Zhijian, Ma, Huaijun, Wang, Shaojun, Wei, Ying, 田志坚, Xu, Yan, Lin, Liwu, Wang, Lei, You, Wansheng, Zhang, Weiping   +13 more
core   +1 more source