C−H functionalization reactions
Synthesis and Characterization of Iridium Acetate Complexes for the Activation and Functionalization of C-H Bonds.
... ortho-C-H functionalization reactions have been well developed with carboxylic acids and their derivatives such as benzoic acids, 2a, 4, 6 which contain an O-H group and benzamides ...
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Contra-thermodynamic hydrogen atom abstraction in the selective C−H functionalization of trialkylamine N‑CH3 groups
... DABCO radical cation, generated in situ through the use of stable, rechargeable radical cation salts, engages in contra- thermodynamic HAT reactions with trialkylamines with exquisite regioselectivity for N-CH 3 ...
6
Engineering Heme Proteins for Olefin and Carbon−Hydrogen Bond Functionalization Reactions
... 52g). Functionalization of alkyl benzenes is successful at secondary benzylic sp 3 C−H bonds ...benzylic C−H bonds, P411-CHF preferentially functionalizes the secondary position despite ...
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Cp*Ir(III)-Catalyzed Isoquinolone Synthesis via C-H Activation and Functionalization of Benzamides.
... The reactions were allowed to cool to room temperature and filtered over celite with ...1 H NMR spectroscopy utilizing the ratio of ...Individual reactions were performed in triplicate per time ...
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One carbon oxidative annulations of 1,3 enynes by catalytic C–H functionalization and 1,4 rhodium(III) migration
... these reactions is the 1,4- rhodium(III) migration from an alkenyl position to an allyl position, an allylic C–H activation that constitutes an underexplored method to access electrophilic ...
5
Methodological Developments and Synthetic Applications of Strained Rings and Allylic C-H Functionalization of Hindered Substrates
... This reactivity of benzyne with β-ketoesters proved to be quite general, and the scope of acyl-alkylation products produced is shown in Scheme 1.17. A variety of β-ketoesters were tolerated, including those with ...
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Iridium and Rhodium Analogues of the Shilov Cycle Catalyst; and The Investigation and Applications of the Reduction Coupled Oxo Activation (ROA) Mechanistic Motif towards Alkane Upgrading
... for C−H activation [5], and examples of oxidative functionalization with Ir systems are known as well ...for reactions involving high- valent early transition metal centers [7], and it ...
228
Wiedemann, Elija Nathan (2019): Aliphatic and aromatic amines: C-H bond functionalization and kinetics of their reactions with β-lactones, β-lactams, and carbocationic electrophiles. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... electrophilic motifs that have been customized by evolution to irreversibly bind the active sites of enzymes. The corresponding biological activities are as diverse as these scaffolds and range from anticancer to ...
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Mechanistic Insights into Alkane C H Activation and Functionalization by Metal Oxide Surfaces and Organometallic Complexes
... side reactions can be avoided by two means: (1) use counter ions with weaker basicity to increase proton abstraction barriers, and (2) use R = iPr, which has a higher migratory aptitude, to accelerate the ...
206
Synthesis of meso Substituted ABCD Type Porphyrins by Functionalization Reactions
... methoxyphenyl)porphyrin (115): n-Butyllithium (2 ml of a 2.5 M solution in hexane, 10 mmol) was added under an argon atmosphere to a 50 ml Schlenk flask charged with a solution of p-bromophenol (0.43 g, 2.5 mmol) in 10 ...
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Palladium-Catalyzed C-C Bond Forming Reactions With Weakly Acidic C(sp3)-H Bonds
... cross-coupling reactions to form C-C bonds are a mainstay in the preparation of small molecules, which have applications ranging from biological studies to treatment of human ...direct ...
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Towards a Sequential One Pot Preparation of 1,2,3 Benzotriazin 4(3H) ones Employing a Key Cp*Co(III) catalyzed C H Amidation Step
... of C-N bonds is one of the most important, yet challenging, transformations in synthetic organic ...direct C-H functionalization, [4] much attention is now beginning to focus on the ...
10
Radical-mediated C–H functionalization : a strategy for access to modified cyclodextrins
... Finally, to complete the study of the diols, the reactions of 1,2-diols of - and -CDs were carried out. The reaction of the 6 I,II -diol--CD 29 17a under the usual oxidative conditions led to the formation of ...
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Han, Wei (2011): Iron and Palladium Catalyzed C-H Functionalization. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... of C(sp 3 )–H bonds and subsequent C–C bond formation which avoids the use of prefunctionalized starting material is therefore a valuable and straightforward synthetic ...far, ...
266
Ligand Design for the Synthesis of Reactive Nickel(0) Complexes Capable of Inert Bond Activation: Carbon-Fluorine and Carbon-Hydrogen Bond Activation and Catalytic Functionalization
... this reactions has been utilized only in catalytic coupling to carbon–halide bonds and additions to carbon–carbon multiple ...catalytic C–H bond stannylation, which are analogous to those used in ...
309
C–H functionalization for hydrogen isotope exchange
... Another approach to influence the activity of the heterogeneous catalyst is to adjust the Pd/C activity by modification of the catalyst surface in combination with organic bases. This has been extensively studied ...
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Synthesis and characterization of meso-substituted porphyrin
... This research focused on the synthesis of the meso-substituted porphyrin and aims to evaluate the applicability and limitations of the synthetic methods for the preparation of symmetrical and unsymmetrical type of ...
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Catalytic C–H Bond Functionalization by Nickel(0) N-Heterocyclic Carbene Complexes: Influence of Ligand Sterics on Selective Silylation
... 2 h. 1 H NMR showed decomposition of 1b, along with a mixture of silylation product, 2-trimethylsilylbenzoxazole, and hydroarylation product, 2- ethyltrimethylsilylbenzoxazole, and catalytic turnovers of 4 ...
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Versatile and Finely Tuned Albumin Nanoplatform based on Click Chemistry
... using H&E staining. The H&E stains indicated that there was no damage to the major organs, including the heart, lungs, liver, spleen, and kidneys (Figure ...
12
Organometallic C C Coupling Reactions for Porphyrins
... In addition to the organolithium approach described earlier, unsymmetrically meso substituted porphyrins can also be prepared via palladium catalyzed methods. In general terms due to the reactive nature of the meso ...
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