Results 11 to 20 of about 3,346 (163)
Catalytic direct hydrocarboxylation of styrenes with CO2 and H2
Nature Communications, 2022 Hydrocarboxylation of olefins with CO2 provides a useful approach for the synthesis of aliphatic carboxylic acids. Here, the authors report a rhodium-catalysed hydrocarboxylation of styrenes with CO2, using hydrogen as the terminal reductant.
Yushu Jin +4 more
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Selective Dealkenylative Functionalization of Styrenes via C-C Bond Cleavage
Research, 2020 As a readily available feedstock, styrene with about 25 million tons of global annual production serves as an important building block and organic synthon for the synthesis of fine chemicals, polystyrene plastics, and elastomers.
Jianzhong Liu +5 more
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Modeling Styrene−Styrene Interactions
The Journal of Physical Chemistry A, 2005 This study is the first step in the systematic investigation of substituted (carboxyl) polystyrene nanoparticles. Understanding the fundamental interactions between the p-carboxyl styrene monomers, where an ethyl group is used instead of a vinyl group (referenced, for convenience, as "p-carboxyl styrene"), provides the basic information needed to ...
Adamovic, Ivana +3 more
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Random copolymer blends of styrene, para-fluoro styrene and ortho-fluoro styrene [PDF]
Polymer, 1993 This study completes the investigation of the phase behaviour of polymer blends involving styrene (S), ortho-fluoro styrene (oFS) and para-fluoro styrene (pFS). As before, due to the proximity of the glass transition temperatures of most blends investigated, the miscibility or immiscibility is established using the alternative thermal analysis method ...
OUDHUIS, AACM, TENBRINKE, G, KARASZ, FE
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Anti-Markovnikov hydro(amino)alkylation of vinylarenes via photoredox catalysis
Nature Communications, 2021 Many useful chemical scaffolds include carbon or nitrogen substitutions at two or three atoms away from benzene. Here, the authors show a unified hydroalkylation and hydroaminoalkylation protocol to access these structures via a regioselective ...
Zhao Wu, Samuel N. Gockel, Kami L. Hull
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Blends of styrene-butadiene-styrene triblock copolymer with random styrene-maleic anhydride copolymers [PDF]
Macromolecular Chemistry and Physics, 2002 Blends of styrene-butadiene-styrene triblock copolymer (SBS) with random styrene-maleic anhydride copolymers (PS-co-MA), having different MA content, were prepared in a Brabender Plastigraph mixer. The presence of polystyrene (PS) blocks in the SBS copolymer and the high styrene content (93 and 86 wt.-%, respectively) in the two kinds of used PS-co-MA ...
PICCHIONI F. +4 more
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Titania-Catalyzed H2O2 Thermal Oxidation of Styrenes to Aldehydes
Molecules, 2019 We investigated the selective oxidation of styrenes to benzaldehydes by using a non-irradiated TiO2−H2O2 catalytic system. The oxidation promotes multi-step reactions from styrenes, including the cleavage of a C=C double bond and the addition of an
Satoru Ito +6 more
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Molecules, 2003 The novel 2-aryl-3a,4,12,12a-tetrahydropyrrolo[3',4':4,3]-pyridazino[6,1-b]-quinazoline-1,3,6-triones (6a–d), 2-aryl-10-oxopyridazino[6,1-b]-quinazoline-3-thio-carboxamides (10a–d) and 2-aryl-3-nitro-1,2,3,4-tetrahydro-pyridazino[6,1-b ...
Hatem M. Gaber, Sami S. Ghabrial
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Organocatalytic atroposelective synthesis of axially chiral styrenes
Nature Communications, 2017 Many methods exist for the atroposelective synthesis of axially chiral biaryls, but axially chiral styrenes are much less explored. Here the authors report an organocatalytic procedure for the synthesis of configurationally stable, axially chiral ...
Sheng-Cai Zheng +5 more
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Nature Communications, 2023 Direct synthesis of ketones from aldehydes features high atom- and step-economy. Yet, the coupling of aldehydes with unactivated alkyl C(sp3)-H remains challenging.
Hai-Ying Wang +4 more
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