Results 91 to 100 of about 105,486 (290)

Hydrocarbons and polychlorinated biphenyls from the unsaponifiable fraction of anhydrous milk fat

Journal of Lipid Research, 1973
Using a combination of gas–liquid chromatography and mass spectrometry, the presence of 39 aliphatic hydrocarbons was firmly established in the unsaponifiable fraction of anhydrous milk fat.
Vincent P. Flanagan, Aldo Ferretti
doaj   +1 more source

High Ethylene and Propylene in an Area Dominated by Oil Production

Atmosphere, 2020
We measured the spatial distribution and composition of ozone-forming hydrocarbons, alcohols, and carbonyls in Utah’s Uinta Basin during the winter months of 2019 and 2020. The Uinta Basin contains about 10,000 producing oil and gas wells. Snow cover and
Seth N. Lyman, Makenzie L. Holmes, Huy N. Q. Tran, Trang Tran, Trevor O’Neil   +4 more
doaj   +1 more source

Access to cyclopropanes with geminal trifluoromethyl and difluoromethylphosphonate groups

Beilstein Journal of Organic Chemistry, 2023
A synthetic route to the bench-stable fluorinated masked carbene reagent diethyl 2-diazo-1,1,3,3,3-pentafluoropropylphosphonate, bearing a trifluoromethyl and a difluoromethyl group is reported for the first time.
Ita Hajdin, Romana Pajkert, Mira Keßler, Jianlin Han, Haibo Mei, Gerd-Volker Röschenthaler   +5 more
doaj   +1 more source

Scope and Mechanistic Study of the Coupling Reaction of α,β-Unsaturated Carbonyl Compounds with Alkenes: Uncovering Electronic Effects on Alkene Insertion vs Oxidative Coupling Pathways [PDF]

, 2012
The cationic ruthenium-hydride complex [(C6H6)(PCy3)(CO)RuH]+BF4– (1) was found to be a highly effective catalyst for the intermolecular conjugate addition of simple alkenes to α,β-unsaturated carbonyl compounds to give (Z)-selective tetrasubstituted ...
Ackermann L., Ackermann L., Ackermann L., Ackermann L., Anastas P. T., Anastas P. T., Anslyn E. V., Arai T., Beccalli E. M., Berlin J. M., Bernasconi C. F., Chae S. Yi, Colby D. A., Colby D. A., Cristau H.-J., Do W. Lee, Donohoe T. J., Engle K. M., Flynn A. B., Foley N. A., Frantz D. E., Gansäuer A., Gao H., Giri R., Giri R., Guo L.-N., Hartwig J. F., Ho C.-Y., Hojo D., Huang C., Isaacs N. S., Itami K., Jun C.-H., Kakiuchi F., Kakiuchi F., Kakiuchi F., Ki-Hyeok Kwon, Kwon K.-H., Kwon K.-H., Lee D. W., Lee D.-H., Lemay A. B., Liu L., Lu Y., Maryanoff B. E., Matsubara R., Matsuura Y., McKinley N. F., Negishi E., Ni Y., Ogoshi S., Oh H. K., Park S. H., Patureau F. W., Patureau F. W., Patureau F. W., Pintori D. G., Rakshit S., Rakshit S., Sato T., Sheldon R. A., Shen Y., Shi B.-F., Singleton D. A., Stenne B., Strohfeldt K., Stuart D. R., Stuart D. R., Stuart D. R., Su Y., Tang J.-M., Trost B. M., Tsai A. S., Ueyama T., Umeda N., Vorfalt T., Wang F., Wasa M., Wasa M., Weissman H., Weston M. H., Ye M., Yi C. S., Yi C. S., Yokota T., Yu M., Zhang Y.-H., Zhao C., Zhou C., Zhou C., Zhu C.   +90 more
core   +2 more sources

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

Advanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins, Jeferson Luiz Gogola, Ava Gevaerd, Cristiane Kalinke, Paulo Roberto de Oliveira, Fabio Roberto Caetano, Bruno Campos Janegitz, Márcio Fernando Bergamini, Luiz Humberto Marcolino‐Junior   +8 more
wiley   +1 more source

Hydrogenation of unactivated enamines to tertiary amines: rhodium complexes of fluorinated phosphines give marked improvements in catalytic activity

Beilstein Journal of Organic Chemistry, 2015
In the hydrogenation of sluggish unactivated enamine substrates, Rh complexes of electron-deficient phosphines are demonstrated to be far more reactive catalysts than those derived from triphenylphosphine.
Sergey Tin, Tamara Fanjul, Matthew L. Clarke   +2 more
doaj   +1 more source

Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]

, 2014
Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen, Liu, Ying-Ya, Van Der Voort, Pascal   +2 more
core   +1 more source

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

Advanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won, Jaehyun Jang, Hyeonseo Kim, Inyoung Choi, Steve Park, Seongjun Park   +5 more
wiley   +1 more source

Visible-light photoredox catalysis enabled bromination of phenols and alkenes

Beilstein Journal of Organic Chemistry, 2014
A mild and efficient methodology for the bromination of phenols and alkenes has been developed utilizing visible light-induced photoredox catalysis. The bromine was generated in situ from the oxidation of Br− by Ru(bpy)33+, both of which resulted from ...
Yating Zhao, Zhe Li, Chao Yang, Run Lin, Wujiong Xia   +4 more
doaj   +1 more source

MOx/Rh Metallene with Energetic Interfaces as Efficient Bifunctional Electrocatalyst for Durable Water Splitting

Advanced Science, EarlyView.
 . ABSTRACT Developing excellent activity and stability bifunctional electrocatalysts for alkaline water splitting remains challenging. This work constructs ultrathin MOx/Rh metallene heterostructures (M = Fe, Co, Ni) via atmosphere‐controlled solvothermal synthesis, achieving uniform MOx nanoclusters on Rh metallene with optimized interfaces. The FeOx/
Ruilong Wei, Yuner Lin, Shanshan Ye, Shuo Wang, Jing Gao, Chaochao Tao, Shengqian Wang, Pei Xiong, Hang Zhang, Hualan Xu, Shengliang Zhong   +10 more
wiley   +1 more source