PhD Theses Catalytic application of Ru(II) and Rh(I - DEA
Hydrogenation reactions catalyzed by water soluble phosphine .... hydrogenation of diphenylacetylene, and pH also plays a dominant role in the ... 12. 20. 40. 60. 80. 100. pH. % conversion. Fig 4. Hydrogenation of diphenylacetylene in the presence of iodide .... H. H. Horváth, F. Joó, Stereoselective Homogeneous Catalytic.
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use of transition metal complexes as selective hydrogenation catalysts
function as hydrogenation catalysts by mechanisms involving the ... first examples of homogeneous catalytic asymmetric hydro- genation of .... bromide ( Equation 12), but unlike the rhodium(1) catalyst, .... in water have not been successful, several diamagnetic ..... of diphenylacetylene to bibenzyl (Equation 29) (Greenfield.
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View PDF Version - RSC Publishing - Royal Society of Chemistry
Mar 9, 2007 ... on the stereoselective synthesis ... higher substituted amines which play an important role as bulk and fine .... This simple hydrogenation-like set-up of the experiments results in ... mentioning that phenylpropyne (12) reacts with aniline ( 37) to .... achieve successful reaction sequences, 50 mol% water needs.
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Homogeneous catalysis using iron complexes - RSC Publishing
Mar 24, 2011 ... attempts obtained in hydrogenation, transfer hydrogenation and hydrosilylation, which ... negligible role. .... alkynes such as diphenylacetylene or ... water-soluble FeII/Na2EDTA as a catalyst ... thiophene-2-carboxylate 12a catalysed ..... Scheme 16 Asymmetric hydrosilylation of ketones with iron catalysts ...
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Hydration and Hydrolysis with Water Tolerant Lewis - Deep Blue
2.1 Hydrogenation . .... 6.4 Anisole hydrolysis catalyzed by water-tolerant Lewis acids . .... Diphenylacetylene hydration results in some side-products. ..... careful study on acid-catalyzed dehydration of alcohols in supercritical water.  .... indicated by the molecular pair-correlation function of water; with increasing temper-.
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Download Sample pages 2 PDF - Springer
reported for the hydrosilylation of diphenylacetylene did not prove to be ... THF, 40-60 °C, 12 h .... using phenylsilane gave the (E)-vinylsilane product stereoselectively ... much of the work in the past decade on iron-catalysed hydrogenation and ..... In this case molecular sieves were used to remove water from the reaction.
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(C5Me5)Rh(PMe3)H2 with activated alkynes to produce h2-alkene
... at higher temperatures. Insertion of F3CCCCF3 into 1 occurs stereoselectively to yield ... lic reactions such as hydrogenation, oligomerization, .... styrene .
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Chemicals from Alkynes with Palladium Catalysts - RUA
this PdCl2-catalyzed/CuCl2-assisted process when performed in water. ... 12 and Pd(111) single crystals. 13. In addition, the trimerization of alkynes has ... diarylated alkynes, such as diphenylacetylene, using Pd(OAc)2 as catalyst and ..... hydrogenation and secondary hydrocarboxylation, respectively, being also detected.
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and Stereoselective Catalytic Addition of Amides to Alkynes - KLUEDO
Synfacts 2008, 12, Stereodivergent Synthesis of (Z)- and (E)-Thioenamides. ... Chemical products should be designed to preserve efficacy of function while reducing toxicity. ..... The enantioselective hydrogenation of enamides catalyzed by chiral rhodium– .... Only four types of nucleophiles (carboxylates, water, amines and.
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Mechanism of Pd(NHC)-catalyzed transfer hydrogenation of alkynes
stereoselectivity when using a zero-valent palladium(NHC)(maleic ... the mechanism of the reaction or explained the observed selectivity.4,12,13 For the.
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Sample Chapter - Wiley-VCH
insoluble in water . trans-Stilbene isomerizes to cis-stilbene under the influence of light. The reverse path ... They are playing an increasingly prominent role in the area of ..... Page 12 ... Convenient methods for highly stereoselective synthesis of unsymmetrical stil- benoids .... , the addition of diphenylacetylene (110.
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070 doc..070 chapter .. Page104 - Erowid
or metal-catalyzed addition of water or alcohols to alkenes and ... significance. ... essor Winterfeldt, he worked on the stereoselective synthesis of .... diphenylacetylene, 2-butyne and allene. ... hydroamination of aminoalkynes.11, 12 While these titanium ... step followed by hydrogenation of the resulting imine have met.
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Poster session A - CQE
PA.12 Synthesis and Characterization of Dihydride, Cis-Dihydrogen Hydride ... PA.27 Unique Oxidation of Hydrocarbons in an ´´On Water´´ System by ... PA.37 Reactivity of T-Shaped Pt(II) Complexes: Importance of the ... PA.68 Recyclable Iron Nanoparticle Catalysts for Selective Hydrogenation of Alkynes in Ionic Liquids.
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Reduction of Organic Compounds with Diborane - ACS Publications
Jul 25, 1975 ... importance of selective reducing agents in synthetic organic chemistry ..... pirical formula B2ti6-2H20) in the reaction of diborane with water at - 130 0C.54 ... BH3- THF in refluxing THF to give monoaminoboranes (eq 12).61. A. Even in the .... also illustrates the stereoselectivity of this process (eq 23).94. 16.
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GSC-‐6 - The University of Nottingham
Aug 4, 2013 ... Updated 04/08/2013 12:58. Page 1 of ..... Catalytic Organic Reactions in Water ... Effects of water on the hydrogenation of o-‐chloronitrobenzene in ethanol, n-‐ ... New Developments In Enantioselective Alkene Carbonylation ... The Importance of Elemental Sustainability and Recovery .... Diphenylacetylene.
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Applications of potassium-graphite and metals dispersed on - iupac
(Fe—Gr), vinylic and allylic substitution (Pd—Gr), and hydrogenation .... bromides at 20 °C ( ref. 12 ). This has been exploited to perform Reformatsky ... The significance .... by the addition of a little amount of deaerated water, a 95 % yield being ... of synthetically useful reactions, for the chemo— and stereoselectivity ...
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Get PDF (2949K) - Wiley Online Library
Jul 2, 2014 ... synthesis are playing an ever increasing role in achieving synthetic ... Issue 11+ 12/2014, 356, Pages 2361 – 2728 ... profile, to two fully disconnected step-wise and stereoselective ..... Iodides with Amines Catalyzed by Water-Insoluble and ... Chemoselective Hydrogenation of Halonitroaromatics over.
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Boron in the Americas - Queen's University
Jun 28, 2016 ... OP12 - Audrey Ledoux, Paolo Larini, Christophe Boisson, Vincent Monteil, Jean .... 3-Coordinate Boron π-Acceptors in Water-Soluble Chromophores for Live Cell .... for the hydrogenation of imines under mild conditions by Stephan and ... and efficacy of these systems in the asymmetric catalytic reduction of ...
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100 years of the biginelli dihydropyrimidine synthesis
3) -12 In the first step an unsaturated ketoester 9 is condensed with a ... furnish 1216 The same compound is obtained upon hydrogenation of pyrimidine 13 with .... N-3 acylation of Biginelli compounds is of the utmost importance for the synthesis .... as diphenylacetylene decomposes to the nitrile 72?8 Surprisingly, the same ...
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1A12IL Organic Semiconductors Based on Heteroaromatic compounds .... Living emulsion polymerization using water-soluble TERP agent. Weijia Fan ... syntheses and properties of stereoregular hydrogenated ... their application to asymmetric catalysis ... Synthesis of Poly(diphenylacetylene) Derivatives Bearing Optically.
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