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A General Method for the α-Acyloxylation of Carbonyl Compounds
Oct 12, 2005 ... A General Method for the r-Acyloxylation of Carbonyl Compounds. Cory S. Beshara,† Adrian Hall,‡ Robert L. Jenkins,† Kerri L. Jones,†.
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PDF[2.6MB] - Tokyo Chemical Industry Co., Ltd.
are the general methods of preparation and decomposition. The best-known compound ...... 2) A general method for the α-acyloxylation of carbonyl compounds.
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PDF Plus - NRC Research Press
at the double bond but a to the carbonyl to give ... 'The structures of compounds 2 , 4, 6, and 7 were ... pared by this method gave cleaner reactions and higher .... Bu4NI-catalyzed α-acyloxylation reaction of ethers and ketones with aldehydes ... A General. Synthesis of Bis-α-acyloxy-1,4- and -1,5-diketones Through Catalytic  ...
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View PDF Version - RSC Publishing - Royal Society of Chemistry
Feb 22, 2012 ... Karimi,9 and others,10 the oxidation of alcohols to carbonyl compounds is not ... benign oxidant.11a In general, catalytic experiments were done ... The Saegusa oxidation is a convenient method for the conver- sion of silyl enol .... organic compounds are essential in organic synthesis as starting materials ...
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Palladium Catalyzed Allylic CH Alkylation - MDPI.com
Jan 21, 2011 ... The further development of a general method for allylic C-H .... PdII catalyst and is the target for a nucleophilic attack by 1,3-dicarbonyl compounds or their enolate ... acyloxylation, and then undergo Tsuji-Trost reaction to give the final ..... is through the C atom α to the carbonyl and is a rather long Pd-C bond ...
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Cross-dehydrogenative coupling for the - Beilstein-Institut
Jan 20, 2015 ... ... +7-916-385-4080. Keywords: acyloxylation; alkoxylation; C–H functionalization ; C–O bond ... The development of methods for the cross-dehydrogenative coupling (CDC; or ... carbonyl compounds, and fragmentation products. The exam- ... processes are not consistent with general Scheme 2 of the cross-.
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PDF Download - Thieme Connect
Acyloxylation of Arenes ... Novel methods to form carbon–carbon bonds in a stereo- controlled manner remain a ... for handling and purifying organoboron compounds and all those skills ... between the carbonyl oxygen of the methyl ester and the boron atom .... developments in organic chemistry as a general research field.
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Olofsson revised - DiVA
Oct 8, 2010 ... α-Functionalization of carbonyl compounds using hypervalent iodine reagents. Synthesis .... general reviews on hypervalent iodine chemistry. ... enolate, although metal-free organocatalytic methods ..... 2.3 Acyloxylation.
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Get cached PDF (188 KB) - Core
most practical methods leading to the desired carbonyl compounds 3. However, the most conventional method of this conversion,2 relied on acyloxylation followed by ..... General procedure for oxidation of O-alkyl TEMPOs 2 to aldehydes and.
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Development of New Methods for the Synthesis of Aldehydes
Mar 30, 2012 ... Trifluoromethylation of Carbonyl Compounds with Shelf-Stable. Potassium .... General Methods fort the Synthesis of Arenes . ..... were employed for allylic acyloxylation reaction before the catalytic variants were developed in.
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Watts new fluorinations - Electrosynthesis
New applications for fluorinated compounds are continuously being found. In areas ... These effects are in general result of the following facts: ... approach makes use of the traditional methods of organic synthesis, and small molecules .... compounds have been trifluoromethylated in this way, including carbonyl compounds,.
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Get PDF (958K) - Wiley Online Library
term metal catalysis, or catalysts, metal is used as a general heading for ... biochemical methods,. 0159 ... acyloxylation, 0972 ...... of carbonyl compounds, 1098.
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Download PDF - Springer
Jun 21, 2013 ... By virtue of this method, various polysubstituted oxazoles were ... these compounds have been reported. ... of milder and more general procedure to access oxazoles ..... 2-oxo-4-(phenylmethyl)-2-oxazoli dinyl carbonyl oxazole and its ... acyloxylation of enamines via PhIO-mediated intermolecular oxidative.
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Download as Adobe PDF - Edinburgh Research Explorer
Sep 28, 2012 ... General rights ... Current methods for establishing the Ar1-Ar2 bond are dominated by the ..... direct arylation of α-aryl carbonyl compounds. ... [89] A. Pradal, P. Y. Toullec, V. Michelet, Gold-catalyzed oxidative acyloxylation of ...
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Synthesis of biologically active polycyclic natural products and
methods and the expansion of the chemical synthesis toolbox. .... Scheme 5, α- angelica lactone 25 was first acyloxylated using a catalytic .... of hydrocarbons to α,β-unsaturated carbonyl compounds are one of the .... General Procedures.
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bioresources.com - NC State University
levulinic acid lies in its molecular structure that contains a carbonyl group and a carboxyl group. .... organic compounds and also applied in pharmaceuticals and agriculture. ... Up to date, efficient, and clean methods for LA decarboxylation have ..... “Acyloxylation of methylbenzenes by potassium ... General 162, 121-131 .
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Standard Input - Acta Chemica Scandinavica
Energy—Bond Order (BEBO) and Equibonding Methods. LENNART EBERSON. Division of ... in anodic oxidation, viz. acyloxylation, hydroxyla- .... systems, cyano, methyl and methoxycarbonyl radical as ... compounds for which discussions of the problem of direct vs. ..... acetoxylation, and there is general agreement that.
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Download (17MB) - ORCA - Cardiff University
71. 4.1.2. E and Z conformers. 72. 4.2. Diels-Alder reaction. 73. 4.2.1. Method ... Mechanistic study of a-acyloxylation of carbonyl compounds ..... Figure 1.11 General reaction of cyclopetadiene and an a,p~unsaturated aldehyde showing two ...
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Standard Input - Acta Chemica Scandinavica
compound (Ia). Ia and lb could be ... by which a-acyloxylated sulphides are formed on treatment of sulphoxides with anhydrides ... contained both carbonyl groups and sulphoxide groups and others neither of these ... General methods. Melting ...
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WWW.IRANMEET.COM
very concisely within its 66 sections, the whole range of modern methods for C-H- transformation. Most of the sections follow a general concept and are therefore divided into five parts which .... 1.1.1.7 The C±H Activation of Carbonyl Compounds 324. 1.1.1.8 The ... Copper- and Palladium-catalyzed Allylic Acyloxylations 445.
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