Results 11 to 20 of about 104,551 (278)

Metal-free visible-light-enabled vicinal trifluoromethyl dithiolation of unactivated alkenes

Beilstein Journal of Organic Chemistry, 2021
The difunctionalization of alkenes involving a trifluoromethylthio group (SCF3) for the conversion of versatile and readily available olefins into structurally more complex molecules has been successfully studied.
Xiaojuan Li, Qiang Zhang, Weigang Zhang, Jinzhu Ma, Yi Wang, Yi Pan   +5 more
doaj   +1 more source

Synthesis of Dibenzylbutane and 9,8′-Neo-Lignans via Cyclometalation of Allylbenzene by EtAlCl₂ and Mg in the Presence of Zr ansa-Complexes

Chemistry Proceedings, 2021
The aim of the research is the development of a one-pot method for the synthesis of lignans, natural compounds that show a wide spectrum of biological activities.
Pavel V. Kovyazin, Pavel V. Ivchenko, Ilya E. Nifant’ev, Lyudmila V. Parfenova   +3 more
doaj   +1 more source

From‐Neutral‐to‐Neutral Reductive Radical Coupling of Non‐Activated Alcohols and Styrenes

ChemistryEurope, 2023
A reductive radical coupling reaction between non‐activated aliphatic alcohols and styrenes has been discovered through the use of low‐valent Ti‐mediated C−O bond homolysis.
Dr. Takuya Suga, Chinatsu Miki, Prof. Dr. Yutaka Ukaji   +2 more
doaj   +1 more source

Alkene-oxo and alkene-alkene coupling on Pt(II) [PDF]

, 2021
Tetranuclear Pt(II) oxo-complex [(COD)4Pt4([mu]3-O)2Cl2](BF4)2 (1) (COD = 1,5- cyclooctadiene) was found to readily react with a variety of alkenes (ethylene, norbornene, propylene and cyclopentene). The most significant discovery resulted from the norbornene reaction, which gave platinaoxetane [(COD)2Pt2(OC7H10)Cl]BF4 (4), the first metallaoxetane ...
openaire   +2 more sources

Trifluoromethanesulfonamide vs. Non-Fluorinated Sulfonamides in Oxidative Sulfamidation of the C=C Bond: An In Silico Study

Molecules, 2020
A theoretical analysis of the reaction of oxidative sulfamidation of several alkenes was performed in order to explain the various experimental observations and different reactivity of triflamide and non-fluorinated sulfonamides.
Anton V. Kuzmin, Mikhail Yu. Moskalik, Bagrat A. Shainyan   +2 more
doaj   +1 more source

Iron(III)-Mediated Rapid Radical-Type Three-Component Deuteration of Quinoxalinones With Olefins and NaBD4

Frontiers in Chemistry, 2020
Iron(III)-promoted rapid three-component deuteration of quinoxalinones with olefins and NaBD4 is reported for the first time, which provides a novel, economic, and efficient method for the rapid synthesis of deuterated quinoxalinones.
Wanmei Li, Heng Cai, Lin Huang, Lei He, Yilan Zhang, Jun Xu, Pengfei Zhang   +6 more
doaj   +1 more source

Glycerol as a cheap, safe and sustainable solvent for the catalytic and regioselective β,β-diarylation of acrylates over palladium nanoparticles [PDF]

, 2010
Herein we show that glycerol can be considered as a promising cheap and green solvent for the regioselective β,β-diarylation of alkenes. Whereas this reaction is generally catalyzed under an inert atmosphere by expensive phosphine or carbene-palladium ...
Barrault, Joel, Camy, Séverine, Condoret, Jean-Stéphane, Delample, Mathieu, Douliez, Jean-Paul, Jerôme, François, Pouilloux, Yannick, Villandier, Nicolas   +7 more
core   +2 more sources

Characterization of carbon monoxide, methane and nonmethane hydrocarbons in emerging cities of Saudi Arabia and Pakistan and in Singapore [PDF]

, 2016
We investigate the composition of 63 C2-C10 nonmethane hydrocarbons (NMHCs), methane (CH4) and carbon monoxide (CO), in Jeddah, Mecca, and Madina (Saudi Arabia), in Lahore, (Pakistan), and in Singapore. We established a database with which to compare and
Aburizaiza, Omar S, Barletta, Barbara, Blake, Donald R, Blake, Nicola J, Emmons, Louisa K, Farrukh, Muhammad A, Khwaja, Haider A, Meinardi, Simone, Siddique, Azhar, Simpson, Isobel J, Yu, Liya E, Zeb, Jahan   +11 more
core   +1 more source

Metal-Free Direct C–H Functionalization of Quinoxalin-2(1H)-Ones to Produce 3-Vinylated Quinoxalin-2(1H)-Ones in the Presence of Alkenes

Frontiers in Chemistry, 2021
A novel and efficient C3-H vinylation reaction with quinoxalin-2(1H)-one as the substrate, in the presence of alkenes, under metal-free conditions, is reported herein.
Rongcai Ding, Yingxue Li, Yaoyao Chang, Yue Liu, Jie Yu, Yanna Lv, Jinxing Hu   +6 more
doaj   +1 more source

Metal-free syn-dioxygenation of alkenes [PDF]

, 2013
Reactions employing inexpensive reagents from sustainable sources and with low toxicity are becoming increasingly desirable from an academic and industrial perspective.
Ashikari, Bataille, Buddrus, Buddrus, Criegee, D'Alfonso, Dohi, Emmanuvel, Fujita, Fujita, Fujita, Fujita, Greene, Greene, Greene, Greene, Greene, Greene, Griffith, Hirt, Hirt, Javaid, Javaid, Jones, Kang, Kim, Kim, Kolb, Koyama, Kuepper, Liang, Michael J. Rawling, Mudiganti, Nguyen, Nicholas C. O. Tomkinson, Picon, Prevost, Prevost, Prevost, Rani, Rebrovic, Richardson, Santi, Santi, Santoro, Schwarz, Shu, Silva, Jr., Sonoda, Tadokoro, VanRheenen, Wirth, Wirth, Woodward, Yuan, Yusubov, Zhdankin, Zhong, Zhong, Zhu, Çelik   +60 more
core   +1 more source