Results 131 to 140 of about 581 (185)

Photochemistry of butanone and methyl butanone

Journal of Photochemistry, 1973
Abstract The photochemistry of butanone and methyl butanone at 3030Ahas been reinvestigated. At high pressures, the thermal triplet lifetimes were evaluated as 13 × 10−6 s (butanone) and 0.2 × 10−6 s (methyl butanone). An appreciable change in the lifetime of butanone triplets was observed when the total pressure changed from 12 to 500 Torr.
E.A. Lissi, E. Abuin, M.V. Encina
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Aldol condensations with butanone

Recueil des Travaux Chimiques des Pays-Bas, 1958
AbstractA new method for the aldol condensation of citral with butanone is described by which the condensation takes place mainly at the methylene group of the ketone. The mechanism of the reaction is discussed.
M. G. J. Beets, H. van Essen
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Isobaric Vapor−Liquid Equilibria in the Systems 2-Butanone + Heptane and 2-Butanone + Oxolane

Journal of Chemical & Engineering Data, 1998
Vapor−liquid equilibrium at 94 kPa has been determined for the binary systems 2-butanone + heptane and 2-butanone + oxolane. The system 2-butanone + heptane deviates strongly from ideal behavior and presents an azeotrope that boils at 348.4 K and contains 75.0 mol % 2-butanone.
Jaime Wisniak, Eti Fishman, Rotem Shaulitch   +2 more
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Diffusion of anionic polystyrenes in butanone

European Polymer Journal, 1985
Abstract Quasi-elastic light scattering was used to measure the concentration dependence of diffusion coefficients of anionic polystyrenes in butanone. This system has been studied previously by other workers whose results do not entirely agree. The present data are used to resolve this discrepancy.
C.M. Kok, F.R. Hallet, A. Rudin
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Conformational analysis of 2-butanone and 3-methyl-2-butanone using lanthanide shift reagents

Journal of Magnetic Resonance (1969), 1980
Lanthanide-induced 13C and 1H NMR chemical shift ratios of 2-butanone and 3-methyl-2-butanone have been determined using the shift reagent Yb(fod)3. The induced shift data were analyzed to derive the conformational populations for these ketone-lanthanide chelate complexes.
Kenneth L Servis, Feng Fang Shue
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Solvent effects in the hydrogenation of 2-butanone

Journal of Catalysis, 2012
In liquid-phase reaction systems, the role of the solvent is often limited to the simple requirement of dissolving and/or diluting substrates. However, the correct choice, either pure or mixed, can significantly influence both reaction rate and selectivity. For multi-phase heterogeneously catalysed reactions observed variations may be due to changes in
Akpa B S, D'Agostino C, Gladden L F, Hindle K, Manyar H, McGregor J, Li R, Neurock M, Sinha N, Stitt E H, Weber D, Zeitler J A, Rooney D W   +12 more
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4-Chloro-2-butanone

2001
[6322-49-2] C4H7ClO (MW 106.55) InChI = 1S/C4H7ClO/c1-4(6)2-3-5/h2-3H2,1H3 InChIKey = MAGOYBJJLVSJIC-UHFFFAOYSA-N (reagent for Robinson annulation; often interchangeable with methyl vinyl ketone and the corresponding Mannich base 4-dialkylamino-2-butanone) Alternate Names: 2-chloroethyl methyl ketone; 1-chloro-3-butanone.
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Destruction of Butanone and Toluene with Catalytic Incineration

Hazardous Waste and Hazardous Materials, 1995
ABSTRACT Destructions of butanone and toluene are investigated at a low temperature over a catalyst composed of Pt, Ni and Cr alloy of foam type. These odorous volatile organic compounds are subjected to oxidation as single components and as a binary mixture at temperatures in the range 120-220 °C to investigate the effects of destruction.
J.C. LOU, C.L. CHEN
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Polymerization of styrene with diphenylzinc-butanone systems

Polymer Bulletin, 1994
In the present work we report the results of the polymerization of styrene using diphenylzinc-butanone, Ph2Zn-MeCOEt. Our results indicate that these systems induce the polymerization of styrene reaching a larger conversion when the molar ratio MeCOEt/Ph2Zn=1,0.
Jes�s M. Contreras, Hugo A. Ayal, Franco M. Rabagliati   +2 more
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2-Butanone Ethylene Acetal

2001
[126-39-6] C6H12O2 (MW 116.16) InChI = 1S/C6H12O2/c1-3-6(2)7-4-5-8-6/h3-5H2,1-2H3 InChIKey = UPZFLZYXYGBAPL-UHFFFAOYSA-N (reagent for production of cyclic acetals by acid-catalyzed transacetalization1) Alternate Names: 2-methyl-2-ethyldioxolane; MED. Physical Data: bp 116–117 °C; d 0.929 g cm−3. Solubility: 
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