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Mild Conditions (mild + condition)
Kinds of Mild Conditions Selected AbstractsReductions of Benzene Derivatives Whose Benzylic Positions Bear Oxygen Atoms under Mild ConditionsHELVETICA CHIMICA ACTA, Issue 12 2008Abdullah Menzek Abstract Reductions of compounds whose benzylic positions bear O-atoms, such as benzyl alcohol, dibenzyl ether, styrene oxide, benzaldehyde, acetophenone, and benzophenone, to the corresponding non-conjugated dienes were performed by using t -BuOH, Li, and gaseous NH3 in THF at room temperature. In these reductions, it was observed that the functional groups at benzylic positions were reduced first. [source] Expanded Heterogeneous Suzuki,Miyaura Coupling Reactions of Aryl and Heteroaryl Chlorides under Mild ConditionsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 17 2009Dong-Hwan Lee Abstract A mesoporous LTA zeolite (MP-LTA)-supported palladium catalyst was developed for the highly efficient Suzuki,Miyaura reaction of aryl and heteroaryl chlorides. The couplings of various aryl chlorides with arylboronic acids in aqueous ethanol were efficiently achieved in the presence of 1.0,mol% of the catalyst. Furthermore, the scope of this catalyst was extended to the coupling of heteroaryl chlorides. Regardless of the substituents, all of the coupling reactions were very clean and highly efficient under mild heating. It shows that our catalyst is one of the most powerful heterogeneous catalysts for the coupling of a wide range of aryl and heteroaryl chlorides. The catalyst could be repetitively used at least 10 times without a significant loss of its catalytic activity. Compared to mesoporous SBA-15 and MCM-41 materials, the MP-LTA support proved to be very stable and robust to prevent degradation upon reuse. [source] Copper-Catalyzed N -Arylation of Hindered Substrates Under Mild ConditionsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 6 2009Michael Abstract A mild, efficient method utilizing a copper-diamine catalyst at room temperature is reported for the coupling of hindered imidazoles with unsubstituted, ortho- substituted, and bis- ortho -substituted boronic acids in good to excellent yields. Aryl halides do not reaction under these conditions permitting sequential N -arylation reactions. [source] Trace Water-Promoted Oxidation of Benzylic Alcohols with Molecular Oxygen Catalyzed by Vanadyl Sulfate and Sodium Nitrite under Mild ConditionsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 4 2009Zhongtian Du Abstract An inexpensive catalytic system consisting of vanadyl sulfate and sodium nitrite was developed for the oxidation of benzylic alcohols with molecular oxygen under mild conditions. Benzyl alcohols with various substitutions were efficiently converted to their corresponding aldehydes with high conversion and selectivity under 80,°C (e.g., 4-nitrobenzyl alcohol was smoothly oxidized to 4-nitrobenzyl aldehyde with 94% yield under 0.5,MPa of molecular oxygen). Halogen, noble metals, extra base or complicated ligands were avoided. Addition of a trace of water to this system before the reaction was crucial for the high efficiency. [source] Aerobic, Chemoselective Oxidation of Alcohols to Carbonyl Compounds Catalyzed by a DABCO-Copper Complex under Mild ConditionsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 14-15 2007Sreedevi Mannam Abstract A DABCO-copper(I) chloride complex (5 mol,%) together with TEMPO (5 mol,%) in nitromethane as solvent has been used as an efficient catalytic system for the selective oxidation of benzylic and allylic alcohols into the corresponding carbonyl compounds at room temperature where molecular oxygen acts as an ultimate, stoichiometric oxidant and water is the only by-product. The solid-state structure determination of the DABCO-copper complex shows that the copper is in the +II oxidation state with trigonal bipyramidal geometry and exists in a linear polymeric structure due to strong hydrogen bonding. [source] Aqueous Dispersions of Nonspherical Polyethylene Nanoparticles from Free-Radical Polymerization under Mild Conditions,ANGEWANDTE CHEMIE, Issue 38 2010Etienne Grau Eine radikale Idee: Die radikalische Polymerisation von Ethylen erfordert normalerweise aggressive Reaktionsbedingungen. Nun wurde die Effizienz dieser Reaktion zur Synthese stabiler wässriger Polyethylen(PE)-Dispersionen unter milden Bedingungen in Wasser untersucht (<250,bar) (siehe Bild, Dp=Partikeldurchmesser). Dispersionen aus PE-Nanopartikeln mit verschiedenen Formen (Zylinder oder Kugel) und Feststoffgehalten bis 40,% wurden hergestellt. [source] Palladium-Catalyzed Aerobic Oxidative Carbonylation of Arylboronate Esters under Mild Conditions,ANGEWANDTE CHEMIE, Issue 19 2010Qiang Liu Mit CO und Luft: Die Titelreaktion mit [PdCl2(PPh3)2] als Katalysatorvorstufe ergab unter sehr milden Bedingungen (leichter Überdruck von CO und Luft, 40,50,°C) zahlreiche Arylcarbonsäureester 2 in guten bis hervorragenden Ausbeuten. Bemerkenswert war die Selektivität für die oxidative Carbonylierung gegenüber der Homokupplung der Boronsäureester 1. [source] ChemInform Abstract: Mild Conditions for Copper-Catalyzed N-Arylation of Imidazoles.CHEMINFORM, Issue 37 2010Huaming Chen Abstract The optimized conditions allow an efficient N-arylation of a variety of heterocycles with (het)aryl bromides and iodides. [source] ChemInform Abstract: One-Pot, Three-Component Synthesis of 1-(2-Hydroxyethyl)-1H-1,2,3-triazole Derivatives by Copper-Catalyzed 1,3-Dipolar Cycloaddition of 2-Azido Alcohols and Terminal Alkynes under Mild Conditions in Water.CHEMINFORM, Issue 31 2010Hashem Sharghi Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: A Fast and Efficient Method for the Preparation of Aryl Azides Using Stable Aryl Diazonium Silica Sulfates under Mild Conditions.CHEMINFORM, Issue 46 2009Amin Zarei Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Functional Group Tolerance in Copper-Catalyzed N-Arylation of Nitrogen-Containing Heterocycles under Mild Conditions.CHEMINFORM, Issue 29 2009Liangbo Zhu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: An Efficient, Rapid, and Regioselective Bromination of Anilines and Phenols with 1-Butyl-3-methylpyridinium Tribromide as a New Reagent/Solvent under Mild Conditions.CHEMINFORM, Issue 23 2009Sanjay P. Borikar Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Wet Carbon-Based Solid Acid/Potassium Permanganate as an Efficient Heterogeneous Reagents for Oxidation of Alcohols under Mild Conditions.CHEMINFORM, Issue 21 2009Arash Shokrolahi Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Convenient Regioselective Synthesis of Functionalized Arylated Benzene from Ketene-S,S-acetal under Mild Conditions at Room Temperature.CHEMINFORM, Issue 21 2009Vijay Kumar Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Facile Synthesis of Anticancer Drug NCX 4040 in Mild Conditions.CHEMINFORM, Issue 6 2009Mei Xiao Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Palladium-Catalyzed Oxidative Carbonylation of Alkyl and Aryl Indium Reagents with CO under Mild Conditions.CHEMINFORM, Issue 49 2008Yingsheng Zhao Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Synthesis of Carbamoyl Azides from Primary Amines and Carbon Dioxide under Mild Conditions.CHEMINFORM, Issue 31 2008Eduardo Garcia-Egido Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: TEMPO/HCl/NaNO2 Catalyst: A Transition-Metal-Free Approach to Efficient Aerobic Oxidation of Alcohols to Aldehydes and Ketones under Mild Conditions.CHEMINFORM, Issue 30 2008Xinliang Wang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Palladium-Catalyzed Hydrophenylation of Alkynes with Sodium Tetraphenylborate under Mild Conditions.CHEMINFORM, Issue 20 2008Hanxiang Zeng Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Biomimetic Aromatization of Hantzsch 1,4-Dihydropyridines by S,S Bonds under Mild Conditions.CHEMINFORM, Issue 1 2008Hamid Aliyan Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] A Convenient Samarium-Promoted Synthesis of Aliphatic (E)-Nitroalkenes under Mild Conditions.CHEMINFORM, Issue 48 2007Jose M. Concellon Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] A Simple and Efficient FeCl3 -Catalyzed Direct Alkylation of Active Methylene Compounds with Benzylic and Allylic Alcohols under Mild Conditions.CHEMINFORM, Issue 38 2007Umasish Jana Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Efficient Addition Reaction of Bromonitromethane to Aldehydes Catalyzed by NaI: A New Route to 1-Bromo-1-nitroalkan-2-ols under Very Mild Conditions.CHEMINFORM, Issue 15 2007Jose M. Concellon Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] NBS as an Efficient Catalyst for the Synthesis of 1,5-Benzodiazepine Derivatives under Mild Conditions.CHEMINFORM, Issue 12 2007Chun-Wei Kuo Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Efficient Catalytic Insertion of Acetylenes into a Carbon,Carbon Single Bond of Nonstrained Cyclic Compounds under Mild Conditions.CHEMINFORM, Issue 1 2007Yoichiro Kuninobu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] All-Carbon-Substituted Vinylsilane Stable to TBAF: Synthesis of Allyldimethylvinylsilane and Its Pd-Catalyzed Cross-Coupling under Mild Conditions.CHEMINFORM, Issue 51 2006Lianhai Li Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Organic Reactions in Water: Transformation of Aldehydes to Nitriles Using NBS under Mild Conditions.CHEMINFORM, Issue 43 2006B. P. Bandgar Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] 1,3-Dihalo-5,5-dimethylhydantoin or Citric Acid/NaNO2 as a Heterogeneous System for the Selective Mononitration of Phenols under Mild Conditions.CHEMINFORM, Issue 28 2006Mohammad A. Zolfigol Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Heterogeneous Method for the Oxidation of Alcohols under Mild Conditions with Zinc Dichromate Adsorbed on Alumina.CHEMINFORM, Issue 16 2006N. Feizi Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Pd-Catalyzed Stereoselective Oxidation of Methyl Groups by Inexpensive Oxidants under Mild Conditions: A Dual Role for Carboxylic Anhydrides in Catalytic C,H Bond Oxidation.CHEMINFORM, Issue 12 2006Ramesh Giri Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] | |||||||||||||||||||||||||||||||||||||