نتایج جستجو برای: primary alcohols

تعداد نتایج: 652515  

Journal: :Physical chemistry chemical physics : PCCP 2011
Tamar L Greaves Danielle F Kennedy Nigel Kirby Calum J Drummond

The effect of adding primary n-alcohols with aliphatic chains and hexane on the nanostructure of a series of 14 protic ionic liquids (PILs) was explored using small and wide angle X-ray scattering (SAXS and WAXS). PILs were investigated with primary, secondary and tertiary ammonium cations containing different alkyl chain lengths, with and without hydroxyl substitution of the alkyl chain. Forma...

Journal: :Organic & biomolecular chemistry 2011
Adam R Ellwood Michael J Porter

Treatment of primary or secondary alcohols with 1-phenyl-1(H)-tetrazole-5-thiol and [Me(2)NCHSEt](+) BF(4)(-) leads directly and cleanly to 1-phenyl-1(H)-tetrazol-5-yl sulfides.

Journal: :Physical chemistry chemical physics : PCCP 2011
Niall J O'Reilly Edmond Magner

The effect of a range of solvents on the catalytic oxidation of methyl phenyl sulfide to methyl phenyl sulfoxide by MP-11 and by a cyclodextrin derivative of MP-11 was examined. The addition of low concentrations of alcohols enhanced the initial rate of sulfoxidation, most likely due to dispersion of MP-11 aggregates. Higher alcohol concentrations resulted in a decrease in activity arising from...

2014
Mahesh K Lakshman Manish K Singh Mukesh Kumar Raghu Ram Chamala Vijayender R Yedulla Domenick Wagner Evan Leung Lijia Yang Asha Matin Sadia Ahmad

(1H-Benzo[d][1,2,3]triazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP), 1H-benzo[d][1,2,3]triazol-1-yl 4-methylbenzenesulfonate (Bt-OTs), and 3H-[1,2,3]triazolo[4,5-b]pyridine-3-yl 4-methylbenzenesulfonate (At-OTs) are classically utilized in peptide synthesis for amide-bond formation. However, a previously undescribed reaction of these compounds with alcohols in the presen...

Journal: :Chemical communications 2009
Masatoshi Shibuya Takahisa Sato Masaki Tomizawa Yoshiharu Iwabuchi

A facile, green, one-pot oxidation of primary alcohols to carboxylic acids with broad substrate applicability has been developed by employing an expedient catalytic system consisting of 1-Me-AZADO+X-/NaClO2.

Journal: :Chemical communications 2007
Masao Morita Yasushi Obora Yasutaka Ishii

Base-free catalytic alpha-alkylation of active methylene compounds with primary alcohols was successfully achieved using an [IrCl(cod)](2) complex in the presence of PPh(3) to afford the corresponding saturated alpha-alkylated products in good yields.

2009
Eric RUELLAND Ondřej Krinke Matyáš Flemr Chantal Vergnolle Sylvie Collin Jean-Pierre Renou Ludivine Taconnat Agnès Yu Lenka Burketová Olga Valentová Alain Zachowski Eric Ruelland Marie-Laure Martin-Magniette Radek Zíka Michael Hodges

with the design of the microarray experiments and Radek Zíka (Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Czech Republic) for help with the promoter analysis evaluation. We are grateful to Dr. Plant Science Center, Sweden) for careful reading of the manuscript. 4 Abstract (223 words): Salicylic acid (SA) plays a central role in defense against pathogen attack, as...

Journal: :Plant physiology 2013
Sollapura J Vishwanath Dylan K Kosma Ian P Pulsifer Sabine Scandola Stéphanie Pascal Jérôme Joubès Franziska Dittrich-Domergue René Lessire Owen Rowland Frédéric Domergue

Suberin is found in a variety of tissues, such as root endoderms and periderms, storage tuber periderms, tree cork layer, and seed coats. It acts as a hydrophobic barrier to control the movement of water, gases, and solutes as well as an antimicrobial barrier. Suberin consists of polymerized phenolics, glycerol, and a variety of fatty acid derivatives, including primary fatty alcohols. We have ...

2015
Jingjing Wang Samuel Z Y Ting Joanne E Harvey

Bestmann ylide [(triphenylphosphoranylidene)ketene] acts as a chemical linchpin that links nucleophilic entities, such as alcohols or amines, with carbonyl moieties to produce unsaturated esters and amides, respectively. In this work, the formation of α,β,γ,δ-unsaturated esters (dienoates) is achieved through the coupling of Bestmann ylide, an alcohol and an α,β-unsaturated aldehyde. Primary an...

Journal: :Molecules 2013
Kachi R Kishore Kumar Reddy Iara M L Rosa Antônio C Doriguetto Erick L Bastos Luiz F Silva

The iodine-catalyzed Prins cyclization of homoallylic alcohols and aldehydes was investigated under metal-free conditions and without additives. Anhydrous conditions and inert atmosphere are not required. The reaction of 2-(3,4-dihydronaphthalen-1-yl)propan-1-ol and 21 aldehydes (aliphatic and aromatic) in CH₂Cl₂ in the presence of 5 mol % of iodine gave 1,4,5,6-tetrahydro-2H-benzo[f]isochromen...

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