Transition-metal complexes bearing chelating NHC Ligands. Catalytic activity in cross coupling reactions via C H activation

Rufino‐Felipe, Ernesto; Osorio-Yáñez, Rebeca Nayely; Vera, Moises; Valdés, Hugo; González‐Sebastián, Lucero; Reyes-Sánchez, Adán; Morales‐Morales, David

doi:10.1016/j.poly.2021.115220

Cited by 14 publications

(2 citation statements)

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“…A large number of homogeneous metal complexes, mainly group VIII (Ru, Rh, Pt, Ir, Pd and Co), have proven to be efficiently able to coordinate a C-H bond and can be successfully used for C-H activation/functionalization processes [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. These catalysts are often toxic and expensive, and their use often leads to a difficult separation from the products that remain contaminated; their recoveryand reuse is also difficult if not impossible.…”

Section: Introductionmentioning

confidence: 99%

Metal and Metal Oxide Nanoparticles Catalyzed C–H Activation for C–O and C–X (X = Halogen, B, P, S, Se) Bond Formation

2022

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The direct functionalization of an inactivated C–H bond has become an attractive approach to evolve toward step-economy, atom-efficient and environmentally sustainable processes. In this regard, the design and preparation of highly active metal nanoparticles as efficient catalysts for C–H bond activation under mild reaction conditions still continue to be investigated. This review focuses on the functionalization of un-activated C(sp3)–H, C(sp2)–H and C(sp)–H bonds exploiting metal and metal oxide nanoparticles C–H activation for C–O and C–X (X = Halogen, B, P, S, Se) bond formation, resulting in more sustainable access to industrial production.

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Section: Introductionmentioning

confidence: 99%

Metal and Metal Oxide Nanoparticles Catalyzed C–H Activation for C–O and C–X (X = Halogen, B, P, S, Se) Bond Formation

2022

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“…Functionalization of the C(sp 2 )-H bond in arenes and heteroarenes has been extensively applied as an ideal approach for the construction of new chemical bonds. 1,2,3 These direct approaches for construction of complex molecules as well provide an atom-and step-economy efficient access to new C-C and C-X bonds according to the principles of green chemistry opposed to metal-catalyzed cross-coupling reactions of halogen derivatives with organometallic compounds (Sonogashira reactions, Negishi, Suzuki, Miyaura, Heck, Buchwald-Hartwig, etc.). Moreover C-H functionalization does not require preliminary modification of parent compounds and activation of labile and hard in preparation substrates.…”

Section: Introductionmentioning

confidence: 99%

Oxidizing agents in metal-catalyzed and metal-free C-H functionalization of heteroarenes

Utepova¹,

Чупахин²,

Trestsova³

et al. 2021

Arkivoc

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Oxidative C-H functionalization represents a crucial method to make new C-C, C-X (X = heteroatom) bonds. An optimal selection of the oxidizing agent goes hand in hand with the insight into the reaction mechanism. This review covers recent advances in methods of direct oxidative C-H functionalization of azines and their derivatives with heteroaromatic nucleophiles. Also we review the data on application of inorganic and organic oxidants for implementation of these reactions. C-H functionalizations under electrochemical and photocatalytic oxidation conditions are included as well.

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A Review on Chemistry and Methods of Synthesis of 1,2,4‐Triazole Derivatives

Couto Rodrigues,

Silva Moratório de Moraes,

Tavares de Almeida Pinto

et al. 2024

The Chemical Record

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This review provides a comprehensive overview of research on 1,2,4‐triazoles conducted over the last fifteen years. 1,2,4‐Triazoles are highly significant in the pharmaceutical industry, with numerous compounds from this class used clinically as antifungal, antiviral, antibacterial, anti‐inflammatory, and antitubercular agents. Beyond their pharmaceutical relevance, this review also explores their role in material science and agriculture. In material science, 1,2,4‐triazoles are gaining prominence, particularly in the development of energetic materials (EMs), due to their exceptional properties such as thermal stability, coordination ability, and performance comparable to well‐known explosives. Their applications extend to polymers, corrosion inhibitors, and metal‐organic frameworks (MOFs), and they play a significant role in the development of functional materials for sensors, catalysis, and energy storage. Additionally, the review addresses general aspects and synthetic methodologies for the functionalization and construction of the 1,2,4‐triazole ring. Synthetic methods discussed include metalation synthesis, cyclization of hydrazine derivatives, multicomponent reactions, cyclization of amides and amidines, and microwave‐assisted synthesis. Given the significance of the triazole scaffold, its synthesis has garnered considerable attention due to its wide‐ranging applications across various industrial sectors.

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Transition-metal complexes bearing chelating NHC Ligands. Catalytic activity in cross coupling reactions via C H activation

Cited by 14 publications

References 73 publications

Metal and Metal Oxide Nanoparticles Catalyzed C–H Activation for C–O and C–X (X = Halogen, B, P, S, Se) Bond Formation

Metal and Metal Oxide Nanoparticles Catalyzed C–H Activation for C–O and C–X (X = Halogen, B, P, S, Se) Bond Formation

Oxidizing agents in metal-catalyzed and metal-free C-H functionalization of heteroarenes

A Review on Chemistry and Methods of Synthesis of 1,2,4‐Triazole Derivatives

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