Results 31 to 40 of about 6,792 (286)
Urinary styrene in the biological monitoring of styrene exposure.
Scandinavian Journal of Work, Environment & Health, 1993 The urinary excretion of styrene represents a promising indicator of exposure to this solvent. Nevertheless extensive research under field conditions is scant. In this investigation 214 styrene-exposed workers from 10 fiberglass-reinforced plastics factories were studied. Environmental monitoring was performed by personal passive sampling.
GOBBA, Fabriziomaria +5 more
openaire +4 more sources
Visible-Light-Driven Reductive Carboarylation of Styrenes with CO2 and Aryl Halides [PDF]
, 2019 The first example of visible-light-driven reductive carboarylation of styrenes with CO2 and aryl halides in a regioselective manner has been achieved. A broad range of aryl iodides and bromides were compatible with this reaction.
Gang, Li +3 more
core +2 more sources
Molecules, 2023 Palladium-catalyzed C-H activation reactions have attracted the attention of organic researchers due to their unique high selectivity, broad functional group tolerance, and high efficiency, and they are widely used in natural products and asymmetric ...
Zeng Zhao +5 more
doaj +1 more source
Ligand Enabled Nickel-Catalyzed Asymmetric Hydroarylation of Styrenes and 1,3-Dienes with Arylboronic Acids [PDF]
, 2019 A chiral spiro aminophosphine ligand enabled nickel-catalyzed asymmetric hydroarylation of styrenes and 1,3-dienes with arylboronic acids. The reaction was promoted by a Ni–H species generated from protonation of Ni(0) with alcohol.
LIJUN, XIAO +4 more
core +2 more sources
Nature Communications, 2018 Hydrosilylation of alkenes poses substantial challenges in terms of regioselectivity. Here, the authors report iron complexes with 1,10-phenantroline ligand scaffolds which display benzylic selectivity in the hydrosilylation of internal alkenes and ...
Meng-Yang Hu +7 more
doaj +1 more source
Applied Sciences, 2020 An efficient and selective oxidative procedure for the synthesis of quinazolinones from readily available o-aminobenzamides and styrenes was developed.
Muhammad Sharif
doaj +1 more source
Radical Polymerization of Styrene Dimer and Radical Copolymerizations of Styrene Dimer with Styrene
KOBUNSHI RONBUNSHU, 2009 ポリスチレンの熱分解で生じるスチレン二量体(2,4-ジフェニル-1-ブテン；SD)のラジカル重合とスチレン(St)とのラジカル共重合を，塊状重合の条件下で検討した．SD の単独重合においては，SD の嵩高い α 置換基による立体障害の影響により SD の付加が妨げられ，重合率は低く，生成物の分子量も 1000 程度と低分子量体であった．SD と St とのラジカル共重合においては，SD と St ともに消費され，分子量が約 15000 の SD と St からなる高分子量体コポリマーが生成した．DSC により測定した SD を約 30 mol%含むコポリマーのガラス転移温度(Tg)は約 130℃ であり，ポリスチレンの Tg よりもかなり高いことがわかった．
OHARA, Masayuki +5 more
openaire +2 more sources
Conjugative Interaction in Styrenes
, 2016 Conjugative interactions of the carbon−carbon double bond are fundamental in organic chemistry. In this work, equilibria are established among conjugated and unconjugated isomers of two β-substituted styrenes, 1-phenylbut-1-ene and 1-phenyl-3-methylbut-1-
Peter Smart Carleton (3001221) +3 more
core +1 more source
Photoinduced hydroxylperfluoroalkylation of styrenes
, 2018 “No Catalyst is Better” is confirmed in the hydroxylperfluoroalkylation of styrenes with perfluoroalkyl iodides under irradiation by visible light.
Chao Liu +7 more
core +1 more source
One-pot selective synthesis of β-nitrostyrenes from styrenes, promoted by Cu(II)
, 2000 A convenient, inexpensive and efficient 'one-pot' process is described for the selective nitration of styrenes to the corresponding β-nitrostyrenes under mild conditions.
Pedro J Campos +5 more
core +1 more source