A General Strategy Based on Hetero‐Charge Coupling Effect for Constructing Single‐Atom Sites DOI
Cheng Peng, Mingyue Wang, Sha Li

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(36)

Published: June 17, 2024

Abstract Single‐atom catalysts have emerged as cutting‐edge hotspots in the field of material science owing to their excellent catalytic performance brought about by well‐defined metal single‐atom sites (M SASs). However, huge challenges still lie achieving rational design and precise synthesis M SASs. Herein, we report a novel strategy based on hetero‐charge coupling effect (HCCE) prepare SASs loaded N S co‐doped porous carbon 1 /NSC). The proposed was widely applied 17 types /NSC composed single or multi‐metal with integrated regulation coordination environment electronic structure, exhibiting good universality flexible adjustability. Furthermore, this provided low‐cost method efficiently synthesizing high yields, that can produce more than 50 g catalyst at one time, which is key large‐scale production. Among various as‐prepared unary be Fe, Co, Ni, V, Cr, Mn, Mo, Pd, W, Re, Ir, Pt, Bi) catalysts, Fe delivered for electrocatalytic nitrate reduction NH 3 Faradaic efficiency 86.6 % yield rate 1.50 mg h −1 cat. −0.6 V vs. RHE. Even using cathode Zn‐nitrate battery, it exhibited open circuit voltage 1.756 energy density 4.42 mW cm −2 cycling stability.

Language: Английский

Single cobalt atom catalysis for the construction of quinazolines and quinazolinones via the aerobic dehydrocyclization of ethanol DOI
Xueping Zhang, Kai Xu, Yi Zhuang

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A Co-SAC with oxidase-like active sites (CoN 4 ) has been fabricated for the construction of quinazolines and quinazolinones using ethanol as C 2 -synthon. Kinetic studies suggest that dehydrogenation is RDS reaction.

Language: Английский

Citations

2
Reductive Coupling of N-Heteroarenes and 1,2-Dicarbonyls for Direct Access to γ-Amino Acids, Esters, and Ketones Using a Heterogeneous Single-Atom Iridium Catalyst DOI
Huanhuan Jia, Qi Liao, Wei Liu

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(46), P. 31647 - 31655

Published: Nov. 7, 2024

Despite their significant importance, the challenges in direct and diverse synthesis of N-heterocyclic γ-amino acids/esters/ketones hamper exploration applications. Herein, by developing a multifunctional heterogeneous iridium single-atom catalyst composed silica-confined species boron-doped ZrO

Language: Английский

Citations

2
Ethynyl-Directed Dual C(sp3)–H Activation Polymerization to Construct Regio- and Stereoregular C(sp3)–C(sp3) Bond Polymers DOI
Jia Wang, Mingzhao Li, Liguo Xu

et al.

Macromolecules, Journal Year: 2023, Volume and Issue: 57(1), P. 122 - 131

Published: Dec. 20, 2023

The establishment of facile, efficient, and precise synthetic approaches to selectively convert stable C–H bonds functional polymers has great significance in both chemistry material science especially by C(sp3)–H activation. Here, an efficient dual activation polymerization alkynes activated methylenes catalyzed Pd(PPh3)4/benzoic acid was successfully established with a 100% atom economy excellent regio- stereoselectivity. A series high-weight-average molecular-weight (Mw approximately 66,500) poly(aryl butene)s (PABs) sole E configuration were generated remarkable yields (approximately 99%). PABs exhibit good thermal stability, solubility, film-forming ability. In addition, the thin PAB films display high refractive indices (RI) up 1.7126 at 589 nm. Because this strong group tolerance, luminophores can be readily constructed into main chain empower multicolored luminescence various states. Notably, containing tetraphenylethene (TPE) moiety feature unique aggregation-induced emission (AIE) peculiarities, which could specifically sensitively detect Fe(III) ions low limit detection (LOD) 1.585 × 10–6 M.

Language: Английский

Citations

5
Direct Reductive Coupling of Nitro Compounds for the Synthesis of Advanced Amines DOI
Albert S. C. Chan, Shan‐Shui Meng, Tao Li

et al.

Synthesis, Journal Year: 2023, Volume and Issue: 56(05), P. 733 - 750

Published: Oct. 17, 2023

Abstract Direct reductive coupling of nitro compounds with C-coupling partners is an atom- and step-economical strategy to access polyfunctional advanced amines. Due the extremely complex process involved in reduction high reactivity N,O-intermediates, few reliable methodologies have been reported for since initial studies. To address this significant challenge, numerous endeavors devoted important area over past hundred years. In short review, we summarize recent advances domain discuss mechanisms these appealing transformations. 1 Introduction 2 Reductive Coupling Nitro Compounds Organometallic Reagents 3 Arylboronic Acids 4 Alkenes 5 Alkyl/Aryl Halides 6 Alcohols Their Derivatives 7 Conclusion

Language: Английский

Citations

4
A General Strategy Based on Hetero‐Charge Coupling Effect for Constructing Single‐Atom Sites DOI
Cheng Peng, Mingyue Wang, Sha Li

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(36)

Published: June 17, 2024

Abstract Single‐atom catalysts have emerged as cutting‐edge hotspots in the field of material science owing to their excellent catalytic performance brought about by well‐defined metal single‐atom sites (M SASs). However, huge challenges still lie achieving rational design and precise synthesis M SASs. Herein, we report a novel strategy based on hetero‐charge coupling effect (HCCE) prepare SASs loaded N S co‐doped porous carbon 1 /NSC). The proposed was widely applied 17 types /NSC composed single or multi‐metal with integrated regulation coordination environment electronic structure, exhibiting good universality flexible adjustability. Furthermore, this provided low‐cost method efficiently synthesizing high yields, that can produce more than 50 g catalyst at one time, which is key large‐scale production. Among various as‐prepared unary be Fe, Co, Ni, V, Cr, Mn, Mo, Pd, W, Re, Ir, Pt, Bi) catalysts, Fe delivered for electrocatalytic nitrate reduction NH 3 Faradaic efficiency 86.6 % yield rate 1.50 mg h −1 cat. −0.6 V vs. RHE. Even using cathode Zn‐nitrate battery, it exhibited open circuit voltage 1.756 energy density 4.42 mW cm −2 cycling stability.

Language: Английский

Citations

1