A Porphyrin-Based Covalent Organic Framework for Metal-Free Photocatalytic Aerobic Oxidative Coupling of Amines

Review Chemistry, Physical

Recent Development of Porous Porphyrin-based Nanomaterials for Photocatalysis

Lin Jin et al.

Summary: This review highlights the recent progress of porous porphyrin-based nanomaterials for photocatalysis, focusing on different classes of porous porphyrin-based nanomaterials and strategies to improve their photocatalytic behavior.

CHEMCATCHEM (2021)

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Article Chemistry, Multidisciplinary

Thiazolo[5,4-d]Thiazole-Based Donor-Acceptor Covalent Organic Framework for Sunlight-Driven Hydrogen Evolution

Wenqian Li et al.

Summary: The 2D covalent organic framework PyTz-COF shows exceptional optoelectronic properties, photocatalytic ability, and photoelectrochemical activity, making it suitable for solar energy harvesting and conversion.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Multidisciplinary Sciences

Rational design of isostructural 2D porphyrin-based covalent organic frameworks for tunable photocatalytic hydrogen evolution

Rufan Chen et al.

Summary: Covalent organic frameworks show promise in photocatalytic hydrogen generation from water, with the incorporation of different transition metals allowing for tuning of the hydrogen evolution rate.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Physical

Highly efficient and selective one-pot tandem imine synthesis via amine-alcohol cross-coupling reaction catalysed by chromium-based MIL-101 supported Au nanoparticles

Ilkay Gumus et al.

Summary: The one-pot tandem synthesis of imines from alcohols and amines using the Au/MIL-101 catalyst has been demonstrated as an efficient, economical, and environmentally friendly approach. The catalyst showed high activity and selectivity, with the highest reported TOF values among MOF-supported Au catalysts, attributed to the synergistic effect between Au nanoparticles and Lewis acid sites in MIL-101. Mechanistic studies revealed that the Au NPs effectively activated the oxidation step while the Lewis acid sites catalyzed the condensation step, leading to excellent catalytic performance.

MOLECULAR CATALYSIS (2021)

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Article Chemistry, Physical

Natural sunlight driven photocatalytic coupling of primary amines over TiO2/BiOBr heterojunction

Saranya Juntrapirom et al.

Summary: In this study, a natural sunlight active TiO2/BiOBr photocatalyst was prepared for green organic synthesis, showing efficient utilization of solar energy. The TB heterojunction exhibited high imine yields for benzylamine coupling reactions under ambient conditions. Various experiments confirmed the outstanding performance and general applicability of the catalyst, attributing them to extended light response range and efficient charge separation and transfer efficiency.

APPLIED SURFACE SCIENCE (2021)

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Review Green & Sustainable Science & Technology

Recent developments in the photocatalytic applications of covalent organic frameworks: A review

Junhua You et al.

Summary: Covalent Organic Frameworks (COFs) are crystalline covalent polymers with high surface area and stable porosity, showing great potential for functionalization. Researchers are highly interested in novel and advanced COF materials for their wide range of useful applications. The use of COFs in photocatalytic applications is rapidly developing, offering an exciting avenue for scientific contributions in the field.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Chemistry, Physical

Cadmium sulfide/titanate hybrid green light photocatalysis for selective aerobic oxidative homocoupling of amines

Xiaoyun Dong et al.

Summary: The CdS/titanate hybrid, prepared by mixing CdS with titanate, can drive the oxidative homocoupling of amines under green light irradiation with high selectivity and improved stability. Experimental results demonstrate the potential viability of hybridization of dual semiconductor nanostructures for visible light-powered selective conversions.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

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Article Chemistry, Inorganic & Nuclear

Vanadium- and Chromium-Catalyzed Dehydrogenative Synthesis of Imines from Alcohols and Amines

Yulong Miao et al.

Summary: Chromium(III) tetraphenylporphyrin chloride and vanadium(IV) tetraphenylporphyrin dichloride have been developed as catalysts for the acceptorless dehydrogenation of alcohols, leading to good yields of imines from a variety of alcohols and amines. The reactions proceed through metal-ligand bifunctional pathways, involving the transfer of two hydrogen atoms from the alcohol to the metal porphyrin complexes. These catalysts offer a potentially valuable alternative to other catalysts based on Earth-abundant metals, as they can also catalyze the dehydrogenation of alcohols with the release of hydrogen gas.

ORGANOMETALLICS (2021)

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Article Green & Sustainable Science & Technology

Photocatalytic integrated production of hydrogen and imines from aromatic amines via Ni-mesoporous carbon nitride: An acceptorless dehydrogenative pathway

Deepak Kumar Chauhan et al.

Summary: This study demonstrated a photocatalytic acceptorless dehydrogenation process of aromatic amines to imines coupled with H-2 evolution using a non-noble metal catalyst. The synthesized catalyst showed superior photocatalytic activity under visible light conditions, with promising conversion rates for furfuryl amine valorization.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Chemistry, Physical

Sulfur-stabilised copper nanoparticles for the aerobic oxidation of amines to imines under ambient conditions

Iris Martin-Garcia et al.

Summary: Sulfur has been found to be an effective stabilizing agent for copper nanoparticles, allowing for their application in organic medium catalytic reactions; The Cu(2)ONPs/S-8 system shows promising results in solvent-free aerobic oxidation of primary amines to imines, with potential for various applications; A proposed reaction mechanism based on experimental evidence provides insight into key intermediates, suggesting new research avenues in nanocatalysis.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

2D sp2 Carbon-Conjugated Porphyrin Covalent Organic Framework for Cooperative Photocatalysis with TEMPO

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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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A Carbazolyl Porphyrin-Based Conjugated Microporous Polymer for Metal-Free Photocatalytic Aerobic Oxidation Reactions

Jun Jiang et al.

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Modulating Benzothiadiazole-Based Covalent Organic Frameworks via Halogenation for Enhanced Photocatalytic Water Splitting

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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Multidisciplinary

Hydrothermal Carbonization of Renewable Natural Plants as Superior Metal-Free Catalysts for Aerobic Oxidative Coupling of Amines to Imines

Chan Liu et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

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Dual-Function Fluorescent Covalent Organic Frameworks: HCl Sensing and Photocatalytic H2Evolution from Water

Ahmed F. M. EL-Mahdy et al.

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Article Chemistry, Physical

The preparation of full-range BiOBr/BiOI heterojunctions and the tunability of their photocatalytic performance during the synthesis of imines under visible light irradiation

Xueli Hao et al.

APPLIED SURFACE SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Photocatalytic Molecular Oxygen Activation by Regulating Excitonic Effects in Covalent Organic Frameworks

Yunyang Qan et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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A highly fluorescent covalent organic framework as a hydrogen chloride sensor: roles of Schiff base bonding and π-stacking

Ahmed F. M. El-Mahdy et al.

JOURNAL OF MATERIALS CHEMISTRY C (2020)

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Article Chemistry, Inorganic & Nuclear

Visible-light-driven self-coupling and oxidative dehydrogenation of amines to imines via a Mn(ii)-based coordination polymer

Hui Liu et al.

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Designed Synthesis of a 2D Porphyrin-Based sp2 Carbon-Conjugated Covalent Organic Framework for Heterogeneous Photocatalysis

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Article Chemistry, Physical

Covalent organic framework as an efficient, metal-free, heterogeneous photocatalyst for organic transformations under visible light

Ziping Li et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

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A Covalent Organic Framework Bearing Single Ni Sites as a Synergistic Photocatalyst for Selective Photoreduction of CO2 to CO

Wanfu Zhong et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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2D sp2 Carbon-Conjugated Covalent Organic Frameworks for Photocatalytic Hydrogen Production from Water

Enquan Jin et al.

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Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO2 Photoreduction with H2O

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Aerobic oxidative coupling of amines to imines by mesoporous copper aluminum mixed metal oxides via generation of Reactive Oxygen Species (ROS)

Deepamali Dissanayake et al.

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Imine-Based Covalent Organic Frameworks as Photocatalysts for Metal Free Oxidation Processes under Visible Light Conditions

Alicia Jimenez-Almarza et al.

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Sustained Solar H2 Evolution from a Thiazolo[5,4-d]thiazole-Bridged Covalent Organic Framework and Nickel-Thiolate Cluster in Water

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Installing earth-abundant metal active centers to covalent organic frameworks for efficient heterogeneous photocatalytic CO2 reduction

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Benzoxazole-Linked Ultrastable Covalent Organic Frameworks for Photocatalysis

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Direct access to N-alkylated amines and imines via acceptorless dehydrogenative coupling catalyzed by a cobalt(ii)-NNN pincer complex

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Synergetic Effect of B and O Dopants for Aerobic Oxidative Coupling of Amines to Imines

Yingying Zhai et al.

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Synthesis of ultrathin WSe2 nanosheets and their high-performance catalysis for conversion of amines to imines

Bing-Qian Zhang et al.

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Visible Light Gold Nanocluster Photocatalyst: Selective Aerobic Oxidation of Amines to Imines

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Transition-Metal-Controlled Inorganic Ligand-Supported Non-Precious Metal Catalysts for the Aerobic Oxidation of Amines to Imines

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Osmium(II) complexes for light-driven aerobic oxidation of amines to imines

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Pt-Cu Bimetallic Alloy Nanoparticles Supported on Anatase TiO2: Highly Active Catalysts for Aerobic Oxidation Driven by Visible Light

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Aerobic Oxidative Coupling of Amines by Carbon Nitride Photocatalysis with Visible Light

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Advances in the Catalytic Asymmetric Arylation of Imines using Organoboron Reagents: An Approach to Chiral Arylamines

Carolina S. Marques et al.

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One-Pot Preparation of Imines from Nitroarenes by a Tandem Process with an Ir-Pd Heterodimetallic Catalyst

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A Porphyrin-Based Covalent Organic Framework for Metal-Free Photocatalytic Aerobic Oxidative Coupling of Amines

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