Palladium-catalyzed
Palladium Catalyzed Aerobic Homocoupling of Alkynes: Full Mechanistic Characterization of a More Complex Oxidase Type Behavior
... S. Palladium-Catalyzed Aero- bic Dehydrogenation of Substituted Cyclohexanones to Phe- ...S. Palladium-Catalyzed Aerobic Dehydrogenation of Cyclic Hydrocarbons for the Synthesis of Substituted ...
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General synthesis of alkenyl sulfides by palladium catalyzed thioetherification of alkenyl halides and tosylates
... In conclusion, a general, selective and scalable methodology for the synthesis of alkenyl sulfides through palladium- catalyzed C–S bond cross-coupling has been developed based on the use of inexpensive ...
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Vinylic addition polynorbornene as catalyst support: applications in organocatalysis and palladium-catalyzed c-c coupling reactions
... Encouraged by the different results observed in the Suzuki couplings described in chapter 3 upon changing the solvents, as well as by the lack of information in this regard, we decided to carry out a study in order to ...
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TítuloFerrocenylindium reagents in palladium‐catalyzed cross‐coupling reactions: asymmetric synthesis of planar chiral 2‐aryl oxazolyl and sulfinyl ferrocenes
... and palladium‐catalyzed cross‐coupling with 3‐bromopyridine using Pd(dppf)Cl 2 (5 mol%) in THF under reflux gave (R P )‐2‐(3‐pyridyl)‐1‐oxazolylferrocene 3 c in 68% ...
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TítuloSynthesis of bench stable solid triorganoindium reagents and reactivity in palladium catalyzed cross coupling reactions
... depending on the nature of the R groups. These reagents reacted with organic electrophiles under palladium catalysis to afford the coupling products in good yields. Interestingly, only 50 mol% of the solid ...
9
Selective palladium catalyzed amination of the heterocyclic core of variolins
... nucleophilic substitution of 6 on the bromomethyl- pyrrole 3a, deprotection of the azolic pyrrole under the phase-transfer conditions, cyclization by attack of the pyrrole nitrogen on the chloroimine and 1,2-elimination ...
5
Palladium–mediated organofluorine chemistry
... also been prepared. 22 These fluorinated groups play the role of auxiliary ligands in many reactions but they have also allowed the isolation and study of unusual coordination modes of the aryl groups, 23 unusual ...
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TítuloSequential In catalyzed intramolecular hydroarylation and Pd catalyzed cross coupling reactions using bromopropargyl aryl ethers and amines
... In summary, starting from easily available bromopropargyl aryl ethers and amines, we have developed a sequential one- pot indium-catalyzed IMHA and palladium-catalyzed cross- coupling process that ...
7
Combined directed ortho zincation and palladiumcatalyzed strategies: Synthesis of 4,n dimethoxysubstituted benzo[b]furans
... According to our retrosynthetic analysis (Scheme 1), the final step to achieve the benzofuran derivatives should be the incorporation of the hydroxy group followed by in situ heterocyclization. In recent years, the ...
6
Reactive Palladium Carbenes: Migratory Insertion and Other Carbene-Hydrocarbyl Coupling Reactions on Well-Defined Systems
... Abstract: Palladium complexes with carbene ligands are among the best known and more extensively used ...to palladium, lead to transformations where the carbene fragment is ...decade, ...
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Gold(I) Catalyzed enantioselective synthesis of functionalized indenes
... (alkynyl)styrenes catalyzed by several metallic complexes has been described to afford naphthalene derivatives through a 6-endo cyclization process (Scheme 1, ...
5
TítuloTriorganoindium reagents in Rh catalyzed C–H activation/C–C cross coupling reactions of 2 arylpyridines
... gave 2b in a similar 18% yield (entry 7). Considering that polar non-protic chlorinated solvents have been successfully used in Rh(I)-catalyzed C–H activation reactions [22,34,35] 1,1,2,2-tetrachloroethane/THF ...
12
Gold(I) catalyzed 6 endo hydroxycyclization of 7 substituted 1,6 enynes
... Despite the numerous studies about the metal-catalyzed trans- formations of 1,6-enynes, o-(alkynyl)-(3-methylbut-2- enyl)benzenes 1 that are also 1,6-enynes bearing an attached aryl ring at the C3–C4 positions, ...
8
Formal Gold to Gold Transmetalation of an Alkynyl Group Mediated by Palladium: A Bisalkynyl Gold Complex as a Ligand to Palladium
... reorganization of both the neutral ligands and the alkynyl fragments between metals. When the reaction is carried out using an equimolar amount of 1 and 2, the reaction proceeds in the same fashion but only half of the ...
5
Adsorption and growth of palladium clusters on graphdiyne
... Pd layers are parallel to the GDY plane, and the layer in contact with the substrate is the face having seven atoms: six Pd atoms sit on top of the carbon chains forming the boundary of the trian- gular hole, and the ...
10
A Radical Mechanism for the Vanadium Catalyzed Deoxydehydration of Glycols
... A Radical Mechanism in the Vanadium Catalyzed Deoxydehydration of Glycols Luis Carlos de Vicente Pouta?s,? Marta Castin?eira Reis,? Roberto Sanz,? Carlos Silva Lo?pez,? and Olalla Nieto Faza?,? ?Depar[.] ...
34
Gold–palladium core@shell nanoalloys: experiments and simulations
... In this work, we report a facile synthesis route, structural characterization, and full atomistic simulations of gold–palladium nanoalloys. Through aberration corrected-STEM, UV-vis spectroscopy and EDS chemical ...
8
Synthesis by Microwaves of Bimetallic Nano Rhodium Palladium
... These particles consisted of Rh branches anchored to a Pd nanocrystal core. The palladium nanocrystals synthesized by different methods exhibit distinct forms, that is, truncated octahedron, cube, and thin plate. ...
22
Molybdenum‐catalyzed sustainable friedländer synthesis of quinolines
... Finally, we decided to test our methodology with more challenging 2-nitroaryl ketones (Scheme 4). Submission of 2-nitroacetophenone 1 m to the estab- lished reaction conditions, using pinacol 2 b as glycol partner, ...
6
Elucidating reaction mechanisms for metal-catalyzed oxidations
... Given that the Pourbaix diagram of the hybrid catalyst indicates the existence of two different active species in the range of typical water oxidation conditions (purple and gray regio[r] ...
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