A5101873451- Asymmetric Hydrogenation and Catalysis
- Catalytic C–H Functionalization Methods
- Chinese history and philosophy
- Asymmetric Synthesis and Catalysis
- Nanocluster Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Quantum Dots Synthesis And Properties
- Visual Attention and Saliency Detection
- Advanced Image and Video Retrieval Techniques
- High Entropy Alloys Studies
- Fermentation and Sensory Analysis
- Photonic and Optical Devices
- Japanese History and Culture
- Nanomaterials for catalytic reactions
- Intermetallics and Advanced Alloy Properties
- China's Ethnic Minorities and Relations
- Meat and Animal Product Quality
- Linguistics and Cultural Studies
- Calcium Carbonate Crystallization and Inhibition
- Organophosphorus compounds synthesis
- Eurasian Exchange Networks
- Demographic Trends and Gender Preferences
- Additive Manufacturing Materials and Processes
- Image and Video Quality Assessment
- Intergenerational Family Dynamics and Caregiving
Tongji University
2015-2025
Materials Science & Engineering
2025
Materials Research Center
2025
Yangzhou University
2010-2024
Lanzhou University
2011-2022
National Research Institute of Brewing
2016
Abstract A general and mild nickel‐catalyzed enantioselective C(sp 2 )−P cross‐coupling for synthesizing P‐stereogenic phosphine oxides has been developed. The asymmetric alkenylation/arylation of racemic secondary with alkenyl/aryl bromides generated high yields enantioselectivities. Various functional groups were tolerated, the applications this method demonstrated through late‐stage functionalization product transformations.
This work represents an important step in the quest for creating atomically precise binary semiconductor nanoclusters (BS-NCs). Compared with coinage metal NCs, preparation of BS-NCs requires strict control reaction kinetics to guarantee formation single phase under mild conditions, which otherwise could lead generation multiple phases. Herein, we developed acid-assisted thiolate dissociation approach that employs suitable acid induce cleavage S-C bonds Cu-S-R (R = alkyl) precursor,...
A photoinduced copper-catalyzed C(sp3)-P bond formation has been developed by using N-(acyloxy)phthalimides as radical precursors and secondary phosphine boranes coupling partners. variety of alkyl carboxylic acid derivatives can be readily transformed into the corresponding phosphines with high reaction efficiency structural diversity. Besides, utilizing 1,5-HAT N-centered process, δ C(sp3)-H coupled phosphines, which provides a novel method for regioselective bonds.
Single-atom catalysts (SACs) with a maximum atom utilization efficiency have received growing attention in heterogeneous catalysis. The supporting substrate that provides atomic-dispersed anchoring sites and the local electronic environment these is crucial to their activity stability. Here, inspired by N-doped graphene substrate, role of N explored transition metal nitrides for single atoms toward single-atom A pore-rich metallic vanadium nitride (VN) nanosheet fabricated as one...
Despite the symmetric, achiral atomic lattices typically found in binary semiconductor nanocrystals, we show that during their early formation stages, especially magic-size cluster (MSC) regime, chirality can be present these metastable, transient species, which are capable of further self-assembling into high-level chiral superstructures. Through a cation exchange process operating at room temperature, structurally symmetrical copper sulfide has been successfully converted pair enantiomeric...
Abstract A general and mild nickel‐catalyzed enantioselective C(sp 2 )−P cross‐coupling for synthesizing P‐stereogenic phosphine oxides has been developed. The asymmetric alkenylation/arylation of racemic secondary with alkenyl/aryl bromides generated high yields enantioselectivities. Various functional groups were tolerated, the applications this method demonstrated through late‐stage functionalization product transformations.
A nickel-catalyzed enantioselective cross-coupling for the synthesis of P-stereogenic phosphinamides has been developed. The asymmetric alkenylation and arylation racemic H-phosphinamides using alkenyl aryl bromides resulted in formation N-phosphinyl compounds with good yields high enantioselectivities. This method tolerates a variety functional groups, its applications are explored through scale-up reactions product transformations.
Due to the rapid development of deep learning, salient target detection models have achieved significant progress. However, these ignore center prior in collected images, that is, there is a greater probability being area for object. The hidden information image not fully utilized, which hinders further improvement result. We propose pooling algorithm realizes combination and learning. dynamically modifies size receptive field according existence objects solves problem ignoring importance...
The creation of atomically precise nanoclusters has become an important research direction in nanoscience, because such nanomaterials can demonstrate unique chemo-physical properties that are significantly different from their corresponding bulk materials. cause disparities lies construction pattern for the atomic structures, which materials display a highly symmetric, extended lattice, while ultrasmall feature low symmetric molecular structures. In this work, we report new...
In this paper, the technology, equipment and method used to m easure mechanical properties of micro-scale new-style intelligent shape memory alloy material were studied. First, two groups small-scale samples made suitable micro load device was designed according samples’ size force range. Then strain observed with video microscopy calculated. Comparing corresponding force, stress-strain curves obtained respectively. After fitting these curves, curve sample obtained. Finally, basic materials...