4.6 Article

Comparative study on reducing aromatic aldehydes by using ammonia borane and lithium amidoborane as reducing reagents

期刊

NEW JOURNAL OF CHEMISTRY
卷 36, 期 7, 页码 1496-1501

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nj40227k

关键词

-

向作者/读者索取更多资源

Lithium amidoborane (LiNH2BH3) and ammonia borane (NH3BH3) reduce aromatic aldehydes in tetrahydrofuran (THF) through two different pathways. LiNH2BH3 only transfers hydridic hydrogen on boron to aldehydes through a hydroboration process to achieve lithium aminoborate; ammonia borane, on the other hand, transfers both protic and hydridic hydrogens on N and B, respectively, to aldehydes to directly achieve corresponding alcohols. Mechanistic investigations confirm that protic H(N) and hydridic H(B) of ammonia borane participate in the reduction, in which the dissociation of both B-H and N-H bonds is likely to be involved in the rate-determining step.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Chemistry, Physical

Ru Nanoparticles on Pr2O3 as an Efficient Catalyst for Hydrogen Production from Ammonia Decomposition

Xilun Zhang, Lin Liu, Ji Feng, Xiaohua Ju, Jiemin Wang, Teng He, Ping Chen

Summary: The use of Pr2O3 support with high density of basic sites and abundant oxygen vacancies, along with strong metal-support interaction, effectively enhances the activity of Ru nanoparticles for ammonia decomposition, resulting in superior catalytic performance of Ru/Pr2O3.

CATALYSIS LETTERS (2022)

Article Engineering, Electrical & Electronic

Label-Free Classification of Bacterial Extracellular Vesicles by Combining Nanoplasmonic Sensors With Machine Learning

Mohammadrahim Kazemzadeh, Colin L. Hisey, Priscila Dauros-Singorenko, Simon Swift, Kamran Zargar-Shoshtari, Weiliang Xu, Neil G. R. Broderick

Summary: Bacterial extracellular vesicles (EVs) are nano-scale lipid-enclosed packages that play important roles in various biological processes. This study demonstrates the potential of using surface-enhanced Raman spectroscopy (SERS) and machine learning algorithms to rapidly classify and characterize bacterial EVs, which is crucial for the development of their laboratory and clinical applications.

IEEE SENSORS JOURNAL (2022)

Article Automation & Control Systems

Experimental Study on the Closed-Loop Control of a Soft Ring-Shaped Actuator for In-vitro Gastric Simulator

Shahab Kazemi, Ryman Hashem, Martin Stommel, Leo K. Cheng, Weiliang Xu

Summary: This study implements closed-loop methods for controlling gastric simulators for the first time, demonstrating the superiority of closed-loop techniques over open-loop approaches through experimental results. By using the RiSPA bellows-driven soft pneumatic actuator as the main actuation system, all technical aspects of implementing closed-loop control and sensor-actuator integration are discussed in detail.

IEEE-ASME TRANSACTIONS ON MECHATRONICS (2022)

Review Chemistry, Physical

Synergistically enhanced single-atomic site catalysts for clean energy conversion

Fa Yang, Weilin Xu

Summary: The development of cost-effective, high-performance catalysts at the atomic level is crucial for large-scale applications of renewable clean energy conversion. Single-atomic site catalysts (SACs) have great potential as next-generation materials, with the introduction and coupling of synergistic components to improve activity. Various atomic-coupling structures, including SAC-NPs, SACCs, DACs, and SAAs, offer unique synergistic effects that need further exploration and comparison.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Article Multidisciplinary Sciences

Revealing the catalytic kinetics and dynamics of individual Pt atoms at the single-molecule level

Xiaodong Liu, Xin Ge, Jing Cao, Yi Xiao, Yan Wang, Wei Zhang, Ping Song, Weilin Xu

Summary: This study investigated the catalysis of Pt SAC at the single-molecule single-atom level and found both static and dynamic activity heterogeneity. It was revealed that the intrinsic catalytic activity of Pt SAC is higher than that of Pt nanoparticles, and there is no catalysis-induced surface restructuring in Pt SAC. Density functional theory calculations further suggested that the unique catalytic properties of Pt SAC or the differences between Pt SAC and nanoparticles could be attributed to the strong adsorptions, large surface energy, and strong binding of Pt-1 species.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2022)

Article Chemistry, Physical

Unraveling the Potential-Dependent Volcanic Selectivity Changes of an Atomically Dispersed Ni Catalyst During CO2 Reduction

Bingbao Mei, Cong Liu, Fanfei Sun, Siyu Lu, Xianlong Du, Xiaopeng Li, Fei Song, Weilin Xu, Zheng Jiang

Summary: Potential-dependent selectivity changes are widely observed in electrocatalysis, but a detailed understanding of these changes at an atomic level is still lacking. In this study, we use a model atomically dispersed nickel catalyst to obtain a comprehensive view of potential-induced structure changes during the CO2 reduction reaction. Our findings show that the catalyst exhibits volcano-like selectivity changes that are dependent on the distance between the nickel atom and the carbon basal plane. Theoretical calculations suggest that local dynamic behaviors play a crucial role in regulating the distribution of the d band center of nickel.

ACS CATALYSIS (2022)

Article Chemistry, Multidisciplinary

Classification of Preeclamptic Placental Extracellular Vesicles Using Femtosecond Laser Fabricated Nanoplasmonic Sensors

Mohammadrahim Kazemzadeh, Miguel Martinez-Calderon, Song Y. Paek, MoiMoi Lowe, Claude Aguergaray, Weiliang Xu, Lawrence W. Chamley, Neil G. R. Broderick, Colin L. Hisey

Summary: Placental extracellular vesicles (EVs) play important roles in pregnancy, but they are also implicated in the progression of preeclampsia. A fabrication process called laser-induced nano-structuring of SERS-active thin films (LINST) was developed to produce substrates that allow the biochemical fingerprinting of EVs. The findings encourage the exploration of surface-enhanced Raman spectroscopy (SERS) of EVs as a promising method for preeclampsia liquid biopsies.

ACS SENSORS (2022)

Article Chemistry, Analytical

Cascaded Deep Convolutional Neural Networks as Improved Methods of Preprocessing Raman Spectroscopy Data

Mohammadrahim Kazemzadeh, Miguel Martinez-Calderon, Weiliang Xu, Lawrence W. Chamley, Colin L. Hisey, Neil G. R. Broderick

Summary: Machine learning has significantly impacted the value of spectroscopic characterization tools, especially in biomedical applications. However, the extensive data preprocessing required often introduces bias. To address this, researchers developed two deep learning methods capable of fully preprocessing spectroscopy data without human input. The findings suggest that these methods outperform conventional approaches in terms of speed, defect tolerance, and classification accuracy.

ANALYTICAL CHEMISTRY (2022)

Review Automation & Control Systems

A Review of Cable-Driven Parallel Robots Typical Configurations, Analysis Techniques, and Control Methods

Mahmoud Zarebidoki, Jaspreet Singh Dhupia, Weiliang Xu

IEEE ROBOTICS & AUTOMATION MAGAZINE (2022)

Article Automation & Control Systems

Nonlinear Model Predictive Control of a Robotic Soft Esophagus

Dipankar Bhattacharya, Ryman Hashem, Leo K. Cheng, Weiliang Xu

Summary: This study presents the design and implementation of a novel robotic soft esophagus (RoSEv2.0) for esophageal stent testing and food viscosity studies. The RoSEv2.0 is equipped with embedded time of flight (TOF) and pressure sensors for modeling and control. Model predictive control (MPC) using SINDYC models was implemented to autonomously govern peristalsis and air pressure. Successful generation of peristalsis waves and migration testing of stents were achieved.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2022)

Article Automation & Control Systems

MRS-Tex: A Magnetically Responsive Soft Tactile Device for Texture Display

Yuan Guo, Qianqian Tong, Xianzhong Liu, Xuesong Bian, Zhihao Zhang, Yuru Zhang, Weiliang Xu, Dangxiao Wang

Summary: In this paper, a magnetically responsive soft tactile device (MRS-Tex) is proposed for rendering high-resolution surface textures. By using a 1 mm diameter soft actuator and a soft membrane bracket, the device is capable of generating sufficient depth pits and achieving high discrimination accuracy according to quantitative experiments and user studies.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2022)

Article Automation & Control Systems

Motion Modeling and Trajectory Tracking Control for a Soft Robotic Table

Zixiao Chen, Zhicong Deng, Jaspreet Singh Dhupia, Martin Stommel, Weiliang Xu

Summary: This article introduces a new control framework for a soft robotic table, which has been experimentally proven to effectively achieve trajectory tracking control.

IEEE-ASME TRANSACTIONS ON MECHATRONICS (2022)

Article Automation & Control Systems

A Chewing Robot to Assist Quantitative Food Analysis: Kinematics and Fuzzy Scheduling Control

Bangxiang Chen, Jaspreet S. Dhupia, Weiliang Xu

Summary: This article introduces a chewing robot based on an adjustable linkage mechanism, which can provide crushing and grinding capability on food and allows users to customize the movement of the molars. The article discusses the robot's movement and two different operation modes, and validates the effectiveness of the planning and control through experiments.

IEEE-ASME TRANSACTIONS ON MECHATRONICS (2023)

Review Automation & Control Systems

A Review of Cable-Driven Parallel Robots Typical Configurations, Analysis Techniques, and Control Methods

Mahmoud Zarebidoki, Jaspreet Singh Dhupia, Weiliang Xu

IEEE ROBOTICS & AUTOMATION MAGAZINE (2022)

Article Automation & Control Systems

Motion Modeling and Trajectory Tracking Control for a Soft Robotic Table

Zixiao Chen, Zhicong Deng, Jaspreet Singh Dhupia, Martin Stommel, Weiliang Xu

Summary: This article presents the development of a control framework for a soft robotic table, modeling the system through experiments and simulations, and designing a closed-loop trajectory tracking system. Experimental results show the effectiveness of the proposed trajectory tracking control method.

IEEE-ASME TRANSACTIONS ON MECHATRONICS (2022)

Article Chemistry, Multidisciplinary

Two biomass material-derived self-doped (N/O) porous carbons from waste coriander and lilac with high specific surface areas and high capacitance for supercapacitors

Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang

Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Nitrate anions embedded in rigid and cationic 3D energetic MOFs constructed by the chelating ligand towards insensitive energetic materials

Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu

Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Mangifera indica stone-assisted layered double hydroxide biocomposites: efficient contenders for reactive dye adsorption from aqueous sources

Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti

Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Unlocking the biosynthetic regulation role of polyketide alkaloid lydicamycins

Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin

Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu

Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Photo-electro concerted catalysis of a highly active Pt/CoP/C nanocomposite for the hydrogen evolution reaction

Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin

Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Synthesis of a water-based TEOS-PDMS sol-gel coating for hydrophobic cotton and polyester fabrics

Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli

Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Non-aqueous electrochemistry of rhodamine B acylhydrazone

Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov

Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Exploring the magnetic, electric and magnetodielectric properties of (1-x)Ba0.9Ni0.1Ti0.9Mn0.1O3-xCo0.9Mn0.1Fe1.9V0.1O4 multiferroic composites

Showket Ahmad Bhat, Mohd Ikram

Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

On the mechanochemical synthesis of C-scorpionates with an oxime moiety and their application in the copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction

Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro

Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Phosphate ions improve the performance of BiFeO3 piezoelectric photoelectrochemical water splitting

Zhihua Liu, Jinzhe Li, Jianguo Zhou

Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Synthesis of p-aminophenol by transfer hydrogenation of nitrobenzene with formic acid as a hydrogen source

Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang

Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

A CuMoO4 nanocatalyst for Csp2-O cross-couplings; easy access to nitrofen derivatives

Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout

Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

A mechanistic study on coupling of CO2 and epoxide mediated by guanidine/TBAI catalysts

Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su

Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.

NEW JOURNAL OF CHEMISTRY (2024)

Article Chemistry, Multidisciplinary

Localized surface plasmon resonance assisted photoredox catalysis using newly fabricated copper-nanorods: a decarboxylative approach towards carbon-hydrogen bond formation under visible light

Saikat Khamarui, Sirshendu Ghosh

Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.

NEW JOURNAL OF CHEMISTRY (2024)