Results 21 to 30 of about 105,486 (290)

Chemical Composition of Essential Oil from Four Sympatric Orchids in NW-Italy

Plants, 2022
Orchidaceae is a flowering plant family worldwide distributed known for producing volatile organic compounds (VOCs) which can act as olfactory signals for pollinators.
Francesco Saverio Robustelli della Cuna, Pierluigi Cortis, Fabiana Esposito, Antonio De Agostini, Cristina Sottani, Cinzia Sanna   +5 more
doaj   +1 more source

Enantioselective Hydrogenations with Chiral Titanocenes

Molecules, 2005
In this review article chiral titanocenes and their application for the enantioselective hydrogenations of different unsaturated compounds are discussed, with a special emphasis on the kinetics and the practicality of the developed systems. The nature of
J. Khinast, A. Panarello, O. Vassylyev
doaj   +1 more source

Regioselective One-Pot Synthesis of Novel Functionalized Organoselenium Compound by Bis-Alkoxyselenenylation of Alkenes with Selenium Dibromide and Alcohols

Inorganics, 2022
The one-pot efficient synthesis of novel functionalized organoselenium compound by bis-alkoxyselenenylation of alkenes with selenium dibromide and alcohols was developed.
Vladimir A. Potapov, Maxim V. Musalov, Alfiya G. Khabibulina, Arkady A. Maylyan, Tatyana N. Borodina, Sergey V. Zinchenko, Svetlana V. Amosova   +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

Efficient Regioselective Synthesis of Novel Condensed Sulfur–Nitrogen Heterocyclic Compounds Based on Annulation Reactions of 2-Quinolinesulfenyl Halides with Alkenes and Cycloalkenes

Molecules, 2021
The preparation of novel reagents 2-quinolinesulfenyl chloride and bromide based on available 2-mercaptoquinoline has been described. This approach opens up opportunities for the introduction of 2-quinolinesulfenyl chloride and bromide into organic ...
Vladimir A. Potapov, Roman S. Ishigeev, Svetlana V. Amosova   +2 more
doaj   +1 more source

Highly selective electrochemical hydrogenation of alkynes: Rapid construction of mechanochromic materials [PDF]

, 2019
Electrochemical hydrogenation has emerged as an environmentally benign and operationally simple alternative to traditional catalytic reduction of organic compounds.
Ge, Haibo, Li, Bijin
core   +1 more source

Cobalt-catalyzed nucleophilic addition of the allylic C(sp3)–H bond of simple alkenes to ketones

Beilstein Journal of Organic Chemistry, 2018
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities.
Tsuyoshi Mita, Masashi Uchiyama, Kenichi Michigami, Yoshihiro Sato   +3 more
doaj   +1 more source

A frustrated-Lewis-pair approach to catalytic reduction of alkynes to cis-alkenes [PDF]

, 2013
Frustrated Lewis pairs are compounds containing both Lewis acidic and Lewis basic moieties, where the formation of an adduct is prevented by steric hindrance.
Chernichenko, K., Madarász, Ádám, Pápai, Imre   +2 more
core   +1 more source

Amine catalysis for the organocatalytic diboration of challenging alkenes [PDF]

, 2016
© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The generation of in situ sp 2 –sp 3 diboron adducts has revolutionised the synthesis of organoboranes.
Althaus, Blaisdell, Bonet, Bonet, Bonet, Burns, Cade, Cid, Cid, Clegg, Cuenca, Dewhurst, Dutheuil, Fang, Gao, Gao, Kleeberg, Kojima, Lee, Lee, Miralles, Miralles, Mkhalid, Neeve, Nguyen, Pietsch, Pubill-Ulldemolins, Sanz, Schmidt, Stymiest, Thorpe, Watson, Yanga, Yoshimura, Zhang, Zheng   +35 more
core   +1 more source

Palladium-Catalyzed N-Alkenylation of N-Aryl Phosphoramidates with Alkenes

Molecules, 2023
Versatile and concise Pd-catalyzed oxidative N-alkenylation of N-aryl phosphoramidates with alkenes is described in this study, a reaction that is of great significance but surprisingly unexploited.
Yu-An Li, Ge Wu, Jia Li
doaj   +1 more source