Development of Catalytic Reactions Using Bis(pinacolato)diboron and Their Applications to Syntheses of Pharmaceuticals and Luminescent Dyes DOI Creative Commons
Shuhei Higashibayashi

Journal of Synthetic Organic Chemistry Japan, Год журнала: 2024, Номер 82(11), С. 1052 - 1062

Опубликована: Ноя. 1, 2024

We have developed three catalytic reactions involving borylation and C-C bond formation using bis(pinacolato)diboron (B2pin2), extended their use to the synthesis of pharmaceuticals luminescent dyes. In addition, we also elucidated photophysical properties those The first reaction is a Cu-catalyzed stereoselective glycosyl bromide β-glycosyl trifluoroborates, which has been further expanded synthesize aryl β-C-glycosides via Pd-catalyzed stereospecific cross-coupling with bromides. These methods were applied SGLT2 inhibitor, canagliflozin. second involves copper-catalyzed acyl chlorides form fluorescent C,N-chelated 2,2-difluoro-1,4-diazaboroles condensation various amino-heterocycles. third an organocatalytic pinacol coupling aldehydes B2pin2 as reductant substituted pyridine catalyst. resulting diols converted benzils, revealing such phosphorescence, fluorescence, self-recovering phosphorescence-to-phosphorescence mechanochromism. studies demonstrated usefulness for producing pharmaceuticals, pharmaceutical candidates novel materials, well making possible investigation products physical properties.

Язык: Английский

S-scheme heterojunction constructed by ZnCdS and CoWO4 nano-ions promotes photocatalytic hydrogen production DOI

Qian Xiao,

Tingting Yang,

Xin Guo

и другие.

Surfaces and Interfaces, Год журнала: 2023, Номер 43, С. 103577 - 103577

Опубликована: Ноя. 3, 2023

Язык: Английский

Процитировано

88

Hollow structured CdS@ZnIn2S4 Z-scheme heterojunction for bifunctional photocatalytic hydrogen evolution and selective benzylamine oxidation DOI
Tengfei Bao,

Chenxi Tang,

Shuming Li

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 659, С. 788 - 798

Опубликована: Янв. 6, 2024

Язык: Английский

Процитировано

16

Spatial Confinement of Pt Nanoparticles in Carbon Nanotubes for Efficient and Selective H2 Evolution from Methanol DOI Creative Commons

Xiao‐Tao Jin,

Jiaying Yan, Xiang Liu

и другие.

Advanced Science, Год журнала: 2024, Номер 11(12)

Опубликована: Янв. 15, 2024

Abstract H 2 generation from methanol‐water mixtures often requires high pressure and temperature (200–300 °C). However, CO can be easily generated poison the catalytic system under such temperature. Therefore, it is highly desirable to develop efficient systems for production methanol at room temperature, even sub‐zero temperatures. Herein, carbon nanotube‐supported Pt nanocomposites are designed synthesized as high‐performance nano‐catalysts, via stabilization of nanoparticles onto nanotube (CNT), upon dehydrogenation Therein, optimal Pt/CNT nanocomposite presents superior performance in expense B (OH) 4 , with TOF 299.51 min ‐1 30 o C. Compared other common carriers, exhibited highest production, emphasizing critical role CNT dehydrogenation. The confinement by CNTs conducive inhibiting aggregation nanoparticles, thereby significantly increasing its stability. kinetic study, detailed mechanistic insights, density functional theory (DFT) calculation confirm that breaking O─H bond CH 3 OH rate‐controlling step dehydrogenation, both atoms supplied methanol. Interestingly, also successfully produced −10 °C, which absolutely solves freezing problem evolution water‐splitting reaction.

Язык: Английский

Процитировано

13

Reinforced photogenerated electron convergence on graphdiyne(g-CnH2n-2) “as an active site and substrate” for enhance photocatalytic hydrogen production DOI
Xiao Ming Qian,

Tingting Yang,

Xin Guo

и другие.

Fuel, Год журнала: 2024, Номер 365, С. 131260 - 131260

Опубликована: Фев. 26, 2024

Язык: Английский

Процитировано

5

In situ XPS confirmed the efficient charge transfer of the CdS/GDY/ZnMoO4 heterojunction based on graphdiyne(CnH2n-2) for photocatalytic hydrogen production DOI
Xin Guo,

Linlin Fan,

Yafeng Liu

и другие.

Renewable Energy, Год журнала: 2023, Номер 222, С. 119877 - 119877

Опубликована: Дек. 21, 2023

Язык: Английский

Процитировано

9

Triazinyl-graphdiyne induces electron directional migration to drive charge separation of CdS for photocatalytic hydrogen evolution DOI
Xiao Ming Qian,

Linlin Fan,

Yafeng Liu

и другие.

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(29), С. 18367 - 18380

Опубликована: Янв. 1, 2024

This work provides new insights for efficient H 2 production by offering adsorption and reduction active sites. The study indicates that TA-GDY selectively triggers electron migration through the interaction between nitrogen atoms acetylene bonds.

Язык: Английский

Процитировано

3

Mechanism insight into “on-off” control for demand-based H2 evolution completely from water over NiO/CNT nanocatalyst DOI
Changming Zhang, Cuili Xiang, Xiaohong Liu

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125204 - 125204

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

When Pt nanoparticles meet oxygen-deficient Co3O4: Enabling superior performance towards on-demand hydrogen generation from hydrolytic dehydrogenation of dimethylamine borane DOI
Jing Jiang, Jiayi Zhang,

Baihao Wu

и другие.

Journal of Alloys and Compounds, Год журнала: 2023, Номер 969, С. 172369 - 172369

Опубликована: Окт. 9, 2023

Язык: Английский

Процитировано

7

Amorphous CoB Modified ZnxCd1‐xS to Construct Schottky Junction for Enhanced Photocatalytic Hydrogen Evolution DOI
Xiang Li, Siyu Wu, Weiqi Yang

и другие.

Advanced Sustainable Systems, Год журнала: 2024, Номер 8(8)

Опубликована: Март 1, 2024

Abstract In this paper, nanosized Zn x Cd 1‐ S is synthesized by a simple hydrothermal method and modified amorphous CoB. S/CoB Schottky heterojunction composite photocatalyst reasonably designed. The adhesion of tiny nanoparticles to irregular block CoB more conducive the dispersion better interface connection between catalysts, thus further promoting migration photogenerated carriers, protecting photocorrosion S, finally improving efficiency photocatalytic hydrogen production. catalyst S/CoB‐20 means that loading content 20 wt%, has highest catalytic under visible light, reaching 1494.09 µmol within 5 h. Through characterization XRD, XPS, electrochemical optical properties catalyst, it proved introduction can significantly inhibit recombination electron holes enhance response light. This study provides feasible scheme for co‐catalysts replace precious metal catalysts effectively reduce photocorrosion.

Язык: Английский

Процитировано

2

Transfer Hydrogenolysis of O‐ and N‐Benzyl Groups in Water with Tetrahydroxydiboron by Using an Amphiphilic Polymer‐Supported Nano‐Palladium Catalyst DOI Creative Commons
Kaili Zhang, Shintaro Okumura, Yasuhiro Uozumi

и другие.

European Journal of Organic Chemistry, Год журнала: 2024, Номер 27(26)

Опубликована: Апрель 16, 2024

Abstract Debenzylation of O ‐ and N ‐benzyl groups was achieved under safe mild conditions by using B 2 (OH) 4 as an alternative to gaseous hydrogen in the presence amphiphilic polystyrene‐poly(ethylene glycol) resin‐supported nano‐palladium catalyst (ARP−Pd) water. Benzyl a variety benzylic ethers, esters, carbamates, amines, including benzyl‐protected carbohydrates amino acids, were reductively removed high yields. ARP−Pd recovered simple filtration reused seven times without significant loss its catalytic activity.

Язык: Английский

Процитировано

2