Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 451, P. 214257 - 214257
Published: Oct. 28, 2021
Language: Английский
Chemical Reviews, Journal Year: 2018, Volume and Issue: 119(4), P. 2524 - 2549
Published: Nov. 20, 2018
The conservation of our element resources is a fundamental challenge mankind. development alcohol refunctionalization reactions possible fossil carbon strategy since alcohols can be obtained from indigestible and abundantly available biomass. rare noble metals, frequently used in key technologies such as catalysis, might feasible by replacing them with highly abundant metals. alkylation amines related C–C coupling are early examples reactions. These follow mostly the borrowing hydrogen or autotransfer catalysis concept, many 3d-metal catalysts have been disclosed recent years. In this review, we summarize progress made developing Cu, Ni, Co, Fe, Mn for C–N bond formation using concept. We expect that findings field will inspire others to develop new efficient selective earth-abundant metal applications novel mediated
Language: Английский
Citations
753
Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(5), P. 2613 - 2692
Published: Feb. 17, 2020
Transition-metal catalyzed reactions that are able to construct complex aliphatic amines from simple, readily available feedstocks have become a cornerstone of modern synthetic organic chemistry. In light the ever-increasing importance across range chemical sciences, this review aims provide concise overview transition-metal approaches alkylamine synthesis and their functionalization. Selected examples amine bond forming include: (a) hydroamination hydroaminoalkylation, (b) C(sp3)–H functionalization, (c) visible-light-mediated photoredox catalysis.
Language: Английский
Citations
699
ACS Central Science, Journal Year: 2021, Volume and Issue: 7(4), P. 570 - 585
Published: March 25, 2021
Borrowing hydrogen is a process that used to diversify the synthetic utility of commodity alcohols. A catalyst first oxidizes an alcohol by removing form reactive carbonyl compound. This intermediate can undergo diverse range subsequent transformations before returns "borrowed" liberate product and regenerate catalyst. In this way, alcohols may be as alkylating agents whereby sole byproduct one-pot reaction water. recent decades, significant advances have been made in area, demonstrating many effective methods access valuable products. outlook highlights diversity metal biocatalysts are available for approach, well various performed, focusing on selection most advances. By succinctly describing conveying versatility borrowing chemistry, we anticipate its uptake will increase across wider scientific audience, expanding opportunities further development.
Language: Английский
Citations
318
Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(24), P. 8933 - 8987
Published: Jan. 1, 2020
The use of metal–ligand cooperation (MLC) by transition metal bifunctional catalysts has emerged at the forefront homogeneous catalysis science.
Language: Английский
Citations
240
Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(11), P. 4386 - 4464
Published: Jan. 1, 2022
The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in Earth's crust, emerged as one leading competitors. Accordingly, a large number molecularly-defined Mn-complexes been synthesized employed for hydrogenation, dehydrogenation, hydroelementation reactions. regard, catalyst design is based three pillars, namely, metal-ligand bifunctionality, ligand hemilability, redox activity. Indeed, developed catalysts not only differ chelating atoms they possess but also working principles, thereby different turnover numbers product molecules. Hence, critical assessment molecularly defined manganese terms atoms, reaction conditions, mechanistic pathway, significant. Herein, we analyze complexes catalytic activity, versatility allow multiple transformations routes convert substrates target This article will be helpful get significant insight into design, aiding design.
Language: Английский
Citations
158
Organic Chemistry Frontiers, Journal Year: 2021, Volume and Issue: 8(11), P. 2673 - 2709
Published: Jan. 1, 2021
In this review, we have summarized various aspects of homogeneous and heterogeneously catalyzed recent advancements in the synthesis heterocycles following ADC approach.
Language: Английский
Citations
144
ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(9), P. 5572 - 5585
Published: April 22, 2021
Atom-efficient processes that occur via addition, redistribution or removal of hydrogen underlie many large volume industrial and pervade all segments chemical industry. Although carbonyl addition is one the oldest most broadly utilized methods for C-C bond formation, delivery non-stabilized carbanions to compounds has relied on premetalated reagents metallic/organometallic reductants, which pose issues safety challenges vis-à-vis implementation. Catalytic reductive couplings promoted hydrogenation, transfer hydrogenation auto-transfer allow abundant unsaturated hydrocarbons serve as substitutes organometallic reagents, enabling formation in absence stoichiometric metals. This perspective (a) highlights past milestones catalytic auto-transfer, (b) summarizes current enantioselective couplings, (c) describes future opportunities based patterns reactivity animate transformations this type.
Language: Английский
Citations
106
ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(12), P. 7142 - 7198
Published: June 1, 2022
Borrowing hydrogen or the autotransfer amination is a powerful approach to create single C–N bonds, starting from stable and readily available substrates: amines alcohols. It considered as one of most atom-efficient green methods synthesize complex amines. Herein, we attempted arrange array existing data in comprehensive structured manner determine correlations between experimental conditions catalysis outcome both within different groups catalysts defined using machine analysis. For each type N-nucleophiles (aromatic, aliphatic, heteroaromatic amines, amides), efficient working were suggested, including attributing optimal base temperature regime for metal.
Language: Английский
Citations
83
Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(16), P. 5541 - 5562
Published: Jan. 1, 2023
Enantioconvergent transformations of racemic secondary alcohols to enantioenriched chiral amines, N-heterocycles, higher-order and ketones through borrowing hydrogen catalysis is covered in this review.
Language: Английский
Citations
47
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(9), P. 6078 - 6144
Published: April 17, 2024
Alcohols are abundant and attractive feedstock molecules for organic synthesis. Many methods their functionalization require them to first be converted into a more activated derivative, while recent years have seen vast increase in the number of complexity-building transformations that directly harness unprotected alcohols. This Review discusses how transition metal catalysis can used toward this goal. These broadly classified three categories. Deoxygenative functionalizations, representing derivatization C–O bond, enable alcohol act as leaving group formation new C–C bonds. Etherifications, characterized by O–H represent classical reactivity has been modernized include mild reaction conditions, diverse partners, high selectivities. Lastly, chain reactions described, wherein acts mediator formal C–H alkyl backbone. Each these classes transformation will discussed context intermolecular arylation, alkylation, related reactions, illustrating alcohols harnessed
Language: Английский
Citations
35