Results 21 to 30 of about 165,943,760 (239)
Hydroarylation of olefins catalysed by a dimeric ytterbium(II) alkyl
Nature Communications, 2021 Nucleophilic alkylation of aromatics with main group reagents was achieved, but it is limited to a stoichiometric regime. Here, the authors report that the ytterbium(II) hydride reacts with ethene and propene to afford ytterbium(II) n-alkyls, both of ...
Georgia M. Richardson +7 more
doaj +1 more source
Results in Engineering, 2023 The distribution of Brønsted acid sites in three-dimensional 12-membered pore channels of Beta zeolite was a decisive factor in the alkylation of benzene with cyclohexene.
Yeqing Huang +4 more
doaj +1 more source
ALKYLATION OF BENZENE WITH LONG CHAIN OLEFINS OVER SOLID-ACID CATALYST
Journal of Engineering, 2009 This investigation is concerned with the linear alkylbenzene production reaction by the alkylation of benzene with long chain olefins C10-C13 over various prepared solid acid catalysts.
Abdul Halim A. K. Mohammed +1 more
doaj +1 more source
Тонкие химические технологии, 2023 Objectives. To identify the principles of creating digital twins of an operating technological unit along the example of the process of liquid-phase alkylation of benzene with propylene, and to establish the sequence of stages of formation of a digital ...
K. G. Kichatov +2 more
doaj +1 more source
Journal of Chemical Research, 2023 Various isomers can be observed in the Friedel–Crafts alkylation of benzene. However, the mechanism and influence of these isomerization reactions were still unclear. In this work, several methyl phenylundecanoate were analyzed by gas chromatography–mass
Jian-Qiao Lang +3 more
doaj +1 more source
DNA polymerase α (swi7) and the flap endonuclease fen1 (rad2) act together in the s-phase alkylation damage response in S. pombe [PDF]
, 2012 Polymerase α is an essential enzyme mainly mediating Okazaki fragment synthesis during lagging strand replication. A specific point mutation in Schizosaccharomyces pombe polymerase α named swi7-1, abolishes imprinting required for mating-type switching ...
Koulintchenko Milana +20 more
core +2 more sources
Organocalcium-mediated nucleophilic alkylation of benzene
Science, 2017 Calcium can breach benzene's defenses Calcium plays a major, multifaceted role in biology and mineralogy. In organic chemistry, though, it is largely overlooked and overshadowed by the carbon compounds of its cousins lithium and magnesium. Wilson et al. now report that the element was just biding its time:
Wilson, Andrew +4 more
openaire +3 more sources
Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange [PDF]
, 1992 Kuck D. Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange. International Journal of Mass Spectrometry and Ion Processes.
Kuck, Dietmar
core +1 more source
The impact of reduction in the benzene limit value in gasoline on airborne benzene, toluene and xylenes levels [PDF]
, 2004 Background benzene, toluene, xylenes (BTX) average concentrations have been measured over the urban agglomeration of Toulouse, France, during both springtime and summer periods of 1999 and 2001.
Meybeck, Maryam +5 more
core +1 more source
Angewandte Chemie, EarlyView.A new type of Si─Me bond activation enabling catalytic alkyl exchange at Si was developed. It involves a P‐directing group and Pd─Lewis acid cooperation. It enables the conversion of Me3SiCl into silanols with three different organic substituents. ABSTRACT A novel mode of Si─Me bond activation has been unveiled through the cooperative action of a P ...
Hajime Kameo +5 more
wiley +2 more sources