Silver-Catalyzed Markovnikov Addition Hydrofunctionalization of Terminal Alkynes: Synthesis of N-Enoxyimides and Oximes DOI

Hafiz Noor,

Shuwei Zhang, Xiaodong Jia

и другие.

Organic Letters, Год журнала: 2024, Номер unknown

Опубликована: Дек. 16, 2024

N-Enoxyimides are versatile and valuable synthetic synthons in modern organic synthesis catalysis. Herein, a silver-catalyzed hydrooxyimidation of terminal alkynes that enables the N-enoxyimides, has been demonstrated. The protocol features simple, step- atom-efficient, scalable, exhibit broad scope functional group tolerance under mild conditions. A novel hydrolysis N-enoxyimides unexpectedly provides corresponding aromatic oximes 96% yield, showing potential application this strategy.

Язык: Английский

A Pickering-emulsion-droplet-integrated electrode for the continuous-flow electrosynthesis of oximes DOI
Feifan Zhang, Qiyuan Fan, Yu-Cheng Huang

и другие.

Nature Synthesis, Год журнала: 2025, Номер unknown

Опубликована: Янв. 6, 2025

Язык: Английский

Процитировано

2
Modulating Hydrogen Adsorption by Unconventional p–d Orbital Hybridization over Porous High‐entropy Alloy Metallene for Efficient Electrosynthesis of Nylon‐6 Precursor DOI

Youwei Sheng,

Jiangwei Xie,

Ruidong Yang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(44)

Опубликована: Июль 12, 2024

Renewable electricity driven electrosynthesis of cyclohexanone oxime (C

Язык: Английский

Процитировано

12
Achieving over 90% Faradaic Efficiency in Cyclohexanone Oxime Electrosynthesis Using the Cu–Mo Dual-Site Catalyst DOI Creative Commons

Runyao Zhao,

Yiding Wang, Jiaju Fu

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер unknown

Опубликована: Сен. 24, 2024

Coupling with the nitrate electroreduction reaction (NitRR), electrosynthesis of cyclohexanone oxime (CHO, vital feedstock in nylon-6 industry) from provides a promising alternative to traditional energy consumption process. However, it still suffers low efficiency because selective production *NH

Язык: Английский

Процитировано

12
Nano‐Single‐Atom Heterointerface Engineering for pH‐Universal Electrochemical Nitrate Reduction to Ammonia DOI
Jian Song,

Shengjie Qian,

Wenqiang Yang

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 5, 2024

Abstract Nano‐single‐atom‐catalysts have the potential to combine respective advantages of both nano‐catalysts and single‐atom‐catalysts thus exhibit enhanced performance. Generally, separation active sites in space limits interaction between single atoms nanoparticles. Heterointerface engineering has break this limitation. Regretfully, studies on interface effect nanoparticles are rarely reported. Herein, an unprecedented nano‐single‐atom heterointerface composed Fe single‐atoms carbon‐shell‐coated FeP (Fe SAC/FeP@C) is demonstrated as efficient electrocatalyst for nitrate reduction process from alkaline acidic. Compared with typical nano‐single‐atom‐catalysts SAC/FePO 4 ) SAC), constructed SAC/FeP@C heterostructure exhibits dramatically nitrate‐to‐ammonia Especially acidic media, maxmium Faradaic efficiency ammonia (NH 3 can reach 95.6 ± 0.5%, a maximum NH yield 36.2 3.1 mg h −1 cat (pH = 1.2), which considerably higher than previously Density functional theory calculations situ spectroscopic investigations indicate that unique charge redistribution at interface, together optimized electronic structure single‐atoms, strengthens intermediate adsorption catalytic activity. This work provides feasible strategy designing heterointerfaces, well valuable insights into conversion under environmentally relevant wastewater conditions.

Язык: Английский

Процитировано

5
Upgrading of nitrate to hydrazine through cascading electrocatalytic ammonia production with controllable N-N coupling DOI Creative Commons
Shunhan Jia, Libing Zhang,

Hanle Liu

и другие.

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Окт. 3, 2024

Язык: Английский

Процитировано

5
Electrocatalytic selective synthesis and tandem utilization of hydroxylamine DOI Creative Commons
Yuxuan Lu, Hengquan Yang

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Язык: Английский

Процитировано

0
Theoretical study on the synthesis of glycine via electrocatalytic reduction over tandem catalysts based on two-dimensional carbon-rich conjugated metalloporphyrin frameworks DOI

Xuan Niu,

Ling Guo

New Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

FeY-Cr(Zr)-BPor COF catalysts not only maintain the advantages of bimetallic but also utilize role B atoms to fully activate NO and CO 2 , thereby exhibiting good catalytic activity with a very low limiting potential (−0.20 V).

Язык: Английский

Процитировано

0
Theoretical Insights into the Selectivity of Single-Atom Fe–N–C Catalysts for Electrochemical NOx Reduction DOI

Yao Tan,

Junwei Fu, Tao Luo

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Single-atom Fe-N-C catalysts have attracted significant attention in the NOx reduction reaction (NOxRR). However, origin of their selectivity NOxRR remains unclear, impeding further advancements application. Herein, we investigate potential-driven competitive mechanism for NH3 and NH2OH production over single-atom pyridinic-FeN4 pyrrolic-FeN4 sites using constant-potential density functional theory calculations. The is linked to switching Fe 3d orbitals as they interact with intermediates. between determined by applied potentials. predominantly generates at higher potentials (-0.6 -1.2 V, vs SHE), while favored lower (0.6 -0.6 V). shows a similar potential-dependent product distribution, crossover potential -1.0 V. selectivity-determining intermediates (SDIs) are *NH2OH *NH2 + *OH. governed interacting SDIs, from dumbbell-shaped 3dz2 four-leaf clover-like 3dxz, 3dyz, 3dx2-y2, which plays crucial role controlling distribution based on These findings offer new insights into NOxRR.

Язык: Английский

Процитировано

0
Interfacial Asymmetrically Coordinated Zn−MOF for High‐Efficiency Electrosynthetic Oxime DOI Open Access
Jiawei Kang, Peisen Liao,

Runan Xiang

и другие.

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Abstract Oximes are important intermediates for various chemicals synthesis such as pharmaceuticals, among which one vital precursor producing neurological disease, antimicrobial and anticancer agents is piperidone oxime (PDO). Compared with conventional thermocatalytic method, it's more attractive to synthesize PDO via green electrocatalytic technology especially utilizing waste nitrogen oxides gas source. However, there great challenges in catalyst design high‐efficiency electrosynthetic due the low electron transport rate multiple competing reactions. Herein, we propose an interfacial coordination strategy based on metal–organic frameworks (MOF) electrocatalyst first time promote electrosynthesis, by building Zn−O bridges between graphite felt (GF) zeolitic imidazolate framework (ZIF‐7/CGF). Specially, ZIF‐7/CGF delivers a Faraday efficiency (FE) of 75.9 % yield up 73.1 1‐methyl‐4‐piperidone oxime, far superior without (a FE 10.7 10.3 %). In‐depth mechanism study shows that introducing can transfer induce Zn sites transforming into distorted tetrahedron (Zn‐N 3 O) mode, benefits adsorption conversion. The developed presents wide universalities towards oximes electrosynthesis adapts other MOF materials (ZIF‐8, ZIF‐4). This work provides new insights organic upgrading cycle through rational surficial coordinated electrocatalysts.

Язык: Английский

Процитировано

0
Interfacial Asymmetrically Coordinated Zn−MOF for High‐Efficiency Electrosynthetic Oxime DOI Open Access
Jiawei Kang, Peisen Liao,

Runan Xiang

и другие.

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Abstract Oximes are important intermediates for various chemicals synthesis such as pharmaceuticals, among which one vital precursor producing neurological disease, antimicrobial and anticancer agents is piperidone oxime (PDO). Compared with conventional thermocatalytic method, it's more attractive to synthesize PDO via green electrocatalytic technology especially utilizing waste nitrogen oxides gas source. However, there great challenges in catalyst design high‐efficiency electrosynthetic due the low electron transport rate multiple competing reactions. Herein, we propose an interfacial coordination strategy based on metal–organic frameworks (MOF) electrocatalyst first time promote electrosynthesis, by building Zn−O bridges between graphite felt (GF) zeolitic imidazolate framework (ZIF‐7/CGF). Specially, ZIF‐7/CGF delivers a Faraday efficiency (FE) of 75.9 % yield up 73.1 1‐methyl‐4‐piperidone oxime, far superior without (a FE 10.7 10.3 %). In‐depth mechanism study shows that introducing can transfer induce Zn sites transforming into distorted tetrahedron (Zn‐N 3 O) mode, benefits adsorption conversion. The developed presents wide universalities towards oximes electrosynthesis adapts other MOF materials (ZIF‐8, ZIF‐4). This work provides new insights organic upgrading cycle through rational surficial coordinated electrocatalysts.

Язык: Английский

Процитировано

0