4.7 Article

Transition-metal-free chemoselective reduction of & alpha;,& beta;-unsaturated ketones using H2O as a hydrogen source

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Review Chemistry, Multidisciplinary

Hydrogenation of Carboxylic Acids, Esters, and Related Compounds over Heterogeneous Catalysts: A Step toward Sustainable and Carbon-Neutral Processes

Ruiyang Qu et al.

Summary: The catalytic hydrogenation of esters and carboxylic acids plays a crucial role in various industries, but it is challenging due to the low reactivity of the carbonyl group. However, recent advancements, particularly in heterogeneous catalysts, have shown promising results in achieving satisfactory yields. This review focuses on the breakthroughs and achievements in the hydrogenation of industrially important carboxylic acids and esters using heterogeneous catalysts, as well as the related catalytic hydrogenations that are significant for cleaner energy technologies and circular chemical industry. Insights into the structure-activity relationship are emphasized to aid in the rational design of more efficient heterogeneous catalysts.

CHEMICAL REVIEWS (2023)

Review Chemistry, Multidisciplinary

Enroute sustainability: metal free C-H bond functionalisation

Sayan Roy et al.

Summary: C-H functionalisation involves C-H activation and subsequent transformation, converting carbon-hydrogen bonds into carbon-carbon or carbon-heteroatom bonds. Metal-free approaches have gained attention as an alternative to transition metal-catalysed methods, providing a cost-effective and environmentally friendly way to functionalise C-H bonds.

CHEMICAL SOCIETY REVIEWS (2023)

Article Chemistry, Organic

Chemoselective reduction of α,β-unsaturated ketones to allylic alcohols under catalyst-free conditions

Kaixia Jian et al.

Summary: In this study, a catalyst-free and efficient method using H3N•BH3 for the chemoselective reduction of α,β-unsaturated cycloketones and acyclic α,β-unsaturated ketones is described. The method is expedient, green, and applicable.

ORGANIC CHEMISTRY FRONTIERS (2022)

Article Nanoscience & Nanotechnology

Metal-Free Chemoselective Reduction of Nitroarenes Catalyzed by Covalent Triazine Frameworks: The Role of Embedded Heteroatoms

Sara Abednatanzi et al.

Summary: A robust nanoporous covalent triazine framework has been developed as a metal-free catalyst for the green chemoselective reduction of nitroarenes.

ACS APPLIED MATERIALS & INTERFACES (2022)

Review Chemistry, Multidisciplinary

Transition-Metal-Free Heterocyclic Carbon-Boron Bond Formation

Subrata Hazra et al.

Summary: This article summarizes the current research status and methods of transition-metal-free synthesis of heteroaryl boronic acids and esters. The transition-metal-free synthesis methods are environmentally friendly, economically advantageous, and have replaced transition-metal-based synthesis methods.

CHEMISTRY-A EUROPEAN JOURNAL (2022)

Article Chemistry, Physical

Rapid and Mild Metal-Free Reduction of Epoxides to Primary Alcohols Mediated by HFIP

Marie Vayer et al.

Summary: This article describes a general method for the reduction of styrene oxides, which is both linear-selective and compatible with strongly electronically deactivated substrates. The reaction is user-friendly and does not require special reagents or atmosphere conditions.

ACS CATALYSIS (2022)

Review Chemistry, Multidisciplinary

Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions

Kuhali Das et al.

Summary: The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals. Manganese has emerged as one of the leading competitors, playing an important role in hydrogenation, dehydrogenation, and hydroelementation reactions. Catalyst design is based on metal-ligand bifunctionality, ligand hemilability, and redox activity, resulting in different turnover numbers for product molecules.

CHEMICAL SOCIETY REVIEWS (2022)

Article Chemistry, Organic

Borane-Catalyzed, Chemoselective Reduction and Hydrofunctionalization of Enones Enabled by B-O Transborylation

Kieran Nicholson et al.

Summary: The use of stoichiometric organoborane reductants in organic synthesis has been well established. In this study, these reagents were rendered catalytic through an isodesmic B-O/B-H transborylation, enabling borane-catalyzed, chemoselective alkene reduction and formal hydrofunctionalization of enones. The proposed mechanism of catalysis involves 1,4-hydroboration and B-O/B-H transborylation as key steps, supported by single-turnover and isotopic labeling experiments.

ORGANIC LETTERS (2021)

Review Chemistry, Multidisciplinary

Chiral Tridentate Ligands in Transition Metal-Catalyzed Asymmetric Hydrogenation

Heng Wang et al.

Summary: Asymmetric hydrogenation of double bonds is an effective method for preparing chiral molecules, with noble metals and bidentate ligands showing remarkable reactivity. The development of chiral tridentate ligands has become increasingly important, enabling both reactivities and stereoselectivities in asymmetric hydrogenation. While noble metal catalysts with chiral tridentate ligands have made significant achievements, there is still a high demand for designing chiral tridentate ligands for earth abundant metal catalysts.

CHEMICAL REVIEWS (2021)

Article Chemistry, Organic

Lithium-Promoted Cycloaddition of Indole-2,3-dienolates and Carbon Disulfide as a One-Pot Route to Thiopyrano[4,3-b]indole-3(5H)-thiones

Konstantin F. Suzdalev et al.

Summary: A new method for the annulation of a thiopyrane ring to an indole core under mild conditions has been developed. The reaction mechanism involves a stepwise addition through ion-pair formation, with the essential role of the Li atom at all stages of the process being revealed by AIM calculations.

JOURNAL OF ORGANIC CHEMISTRY (2021)

Article Chemistry, Organic

Metal-free reduction of unsaturated carbonyls, quinones, and pyridinium salts with tetrahydroxydiboron/water

Henian Peng et al.

Summary: A series of unsaturated carbonyls, quinones, and pyridinium salts have been successfully reduced to the corresponding saturated carbonyls, dihydroxybenzenes, and hydropyridines in moderate to high yields using tetrahydroxydiboron/water as a mild, convenient, and metal-free reduction system. Deuterium-labeling experiments have shown this protocol to be an exclusive transfer hydrogenation process from water.

ORGANIC & BIOMOLECULAR CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Triflyl-assisted reductive Pd-catalyzed Tsuji-Trost type reaction

Carlos Lazaro-Milla et al.

CHEMICAL COMMUNICATIONS (2020)

Review Chemistry, Multidisciplinary

Metal-free photocatalysts for hydrogen evolution

Mohammad Ziaur Rahman et al.

CHEMICAL SOCIETY REVIEWS (2020)

Article Chemistry, Multidisciplinary

Selective hydrogenation of ,-unsaturated carbonyl compounds on silica-supported copper nanoparticles

Jorge Mendes-Burak et al.

CHEMICAL COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

A palladium- catalyzed regiocontrollable hydroarylation reaction of allenamides with B2pin2/ H2O+

Jie Cui et al.

CHEMICAL COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

Cobalt catalyzed stereodivergent semi-hydrogenation of alkynes using H2O as the hydrogen source

Kangkui Li et al.

CHEMICAL COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

Chiral 1,3,2-Diazaphospholenes as Catalytic Molecular Hydrides for Enantioselective Conjugate Reductions

Solene Miaskiewicz et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Multidisciplinary

Base-catalyzed thio-lactamization of 2-(1-arylvinyl)anilines with CS2 for the synthesis of quinoline-2-thiones

Tong-Lin Wang et al.

CHEMICAL COMMUNICATIONS (2018)

Article Chemistry, Multidisciplinary

Iron-Catalyzed Chemoselective Reduction of α,β-Unsaturated Ketones

Alexis Lator et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

Article Chemistry, Multidisciplinary

Stereodivergent Alkyne Reduction by using Water as the Hydrogen Source

Santhosh Rao et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

Review Chemistry, Multidisciplinary

Metal-Free Boron-Containing Heterogeneous Catalysts

Yuanxing Fang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

Article Chemistry, Multidisciplinary

Chemoselective reduction of α,β-unsaturated aldehydes using an unsupported nanoporous gold catalyst

Balaram S. Takale et al.

CHEMICAL COMMUNICATIONS (2014)

Review Chemistry, Multidisciplinary

Transition-Metal-Free Coupling Reactions

Chang-Liang Sun et al.

CHEMICAL REVIEWS (2014)

Review Chemistry, Applied

Combinatorial Syntheses of Five-Membered Ring Heterocycles Using Carbon Disulfide and a Solid Support

Young-Dae Gong et al.

JOURNAL OF COMBINATORIAL CHEMISTRY (2010)