Tieqiao Chen
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View article: Hyperspectral Ghost Image Residual Correction Method Based on PSF Degradation Model
Hyperspectral Ghost Image Residual Correction Method Based on PSF Degradation Model Open
In hyperspectral images, ghost image residuals exceeding a certain threshold not only reduce the recognition accuracy of the imaging detection system but also decrease the target identification rate. Ghost image residuals affect both the r…
View article: Amide Synthesis via Molecular Shuffling of Carboxylic Acids
Amide Synthesis via Molecular Shuffling of Carboxylic Acids Open
The amide bond represents the most fundamental functional group in chemistry and biology. Amides are key building blocks of peptides, pharmaceuticals, polymers, advanced materials and biologically active compounds. The synthesis of amides …
View article: New Tools in Heavy Metal Detection: Synthesis, Spectroscopic, and Quantum Chemical Characterization of Selected Water-Soluble Styryl Derivatives of Quinoline and 1,10-Phenanthroline
New Tools in Heavy Metal Detection: Synthesis, Spectroscopic, and Quantum Chemical Characterization of Selected Water-Soluble Styryl Derivatives of Quinoline and 1,10-Phenanthroline Open
A series of water-soluble molecules based on 8-isopropyl-2-methyl-5-nitroquinoline and 1,10-phenanthroline core were designed by introducing a π-conjugated bridge, vinyl unit –CH=CH–. We present the selective conversion of methyl groups lo…
View article: Divergent alkynylative difunctionalization of amide bonds through C–O deoxygenation versus C–N deamination
Divergent alkynylative difunctionalization of amide bonds through C–O deoxygenation versus C–N deamination Open
View article: Multi-Tiered Cascading Negative Sampling For Graph Based Recommender System
Multi-Tiered Cascading Negative Sampling For Graph Based Recommender System Open
Effective negative sampling strategies can accelerate model convergence, suppress excessive randomness in negative sample generation, and enhance the predictive performance of the recommender systems modeled by implicit feedback. However, …
View article: Synthesis and Spectroscopic Characterization of Selected Water-Soluble Ligands Based on 1,10-Phenanthroline Core
Synthesis and Spectroscopic Characterization of Selected Water-Soluble Ligands Based on 1,10-Phenanthroline Core Open
Water-soluble ligands based on a 1,10-phenanthroline core are relatively poorly studied compounds. Developing efficient and convenient syntheses of them would result in new interesting applications because of the importance of 1,10-phenant…
View article: Site-selective decarbonylative [4 + 2] annulation of carboxylic acids with terminal alkynes by C–C/C–H activation strategy and cluster catalysis
Site-selective decarbonylative [4 + 2] annulation of carboxylic acids with terminal alkynes by C–C/C–H activation strategy and cluster catalysis Open
A highly site-selective decarbonylative [4 + 2] cyclization of carboxylic acids with terminal alkynes forming naphthalenes is enabled by palladium cluster catalysis.
View article: Photocatalytic Synthesis of Alkyl Trifluoromethyl Ketones
Photocatalytic Synthesis of Alkyl Trifluoromethyl Ketones Open
View article: Metal-free highly chemo-selective bisphosphorylation and deoxyphosphorylation of carboxylic acids
Metal-free highly chemo-selective bisphosphorylation and deoxyphosphorylation of carboxylic acids Open
The bisphosphorylation and deoxyphosphorylation of carboxylic acids are achieved selectively under the metal-free reaction conditions. In addition, carboxylic acids can be further transformed into alkenes by coupling with WHE reaction of k…
View article: An Integrated Solution of UAV Push-Broom Hyperspectral System Based on Geometric Correction with MSI and Radiation Correction Considering Outdoor Illumination Variation
An Integrated Solution of UAV Push-Broom Hyperspectral System Based on Geometric Correction with MSI and Radiation Correction Considering Outdoor Illumination Variation Open
The unmanned aerial vehicle (UAV)-borne hyperspectral imaging system has the advantages of high spatial resolution, flexible operation, under-cloud flying, and easy cooperation with ground synchronous tests. Because this platform often fli…
View article: Highly Chemoselective Transamidation of Unactivated Tertiary Amides by Electrophilic N−C(O) Activation by Amide‐to‐Acyl Iodide Re‐routing
Highly Chemoselective Transamidation of Unactivated Tertiary Amides by Electrophilic N−C(O) Activation by Amide‐to‐Acyl Iodide Re‐routing Open
The challenging transamidation of unactivated tertiary amides has been accomplished via cooperative acid/iodide catalysis. Most crucially, the method provides a novel manifold to re‐route the reactivity of unactivated N,N‐dialkyl amides th…
View article: Direct phosphorylation of benzylic C–H bonds under transition metal-free conditions forming sp<sup>3</sup>C–P bonds
Direct phosphorylation of benzylic C–H bonds under transition metal-free conditions forming sp<sup>3</sup>C–P bonds Open
Direct phosphorylation of benzylic C–H bonds with secondary phosphine oxides was first realized. The reaction was performed in organo/aqueous biphasic system and under transition metal-free conditions, proceeding via the cross dehydrogenat…
View article: CCDC 2086277: Experimental Crystal Structure Determination
CCDC 2086277: Experimental Crystal Structure Determination Open
View article: PhI(OAc)<sub>2</sub>-mediated intramolecular oxidative C–N coupling and detosylative aromatization: an access to indolo[2,3-<i>b</i>]quinolines
PhI(OAc)<sub>2</sub>-mediated intramolecular oxidative C–N coupling and detosylative aromatization: an access to indolo[2,3-<i>b</i>]quinolines Open
Under mild conditions, PIDA mediated oxidant C–N coupling to afford indolo[2,3-b]quinoline derivatives has been developed with a decent substrate scope.
View article: Synthesis and Reactivity of Group 10 Transition Metal Complexes with Alkenylphosphoryl Compounds
Synthesis and Reactivity of Group 10 Transition Metal Complexes with Alkenylphosphoryl Compounds Open
陈铁桥 a 刘 龙 a 黄添增 a 韩立彪 * , b ( a 海南大学化学工程与技术学院 热带岛屿资源先进材料教育部重点实验室 海口 570228) ( b 日本产业技术综合研究所 筑波 305-8565 日本) 摘要 在室温下, 烯基膦氧化合物能够快速地替换掉零价钯配合物 Pd(PEt 3 ) 4 中的两个膦配体, 高产率地合成对应的烯 基膦氧配位的钯配位化合物 3a～3e.烯基膦氧配位的镍和铂配合物 3f 和 3g 也能够通过类似的反应方法获得.3e 能够与
View article: Directional variations in parallel polarized water-leaving radiance for suspended particulate matters in coastal waters based on radiative transfer simulation
Directional variations in parallel polarized water-leaving radiance for suspended particulate matters in coastal waters based on radiative transfer simulation Open
The inversion of total suspended particulate matter (TSM) from ocean color remote sensing data in coastal waters is still highly inaccurate due to contributions of various oceanic constituents and non-linear independently variation of each…
View article: Noise reduction and analysis for Chang'E-1 Imaging Interferometer (IIM) data
Noise reduction and analysis for Chang'E-1 Imaging Interferometer (IIM) data Open
\n\tImaging Interferometer (IIM) aboard Chang'E-1 is a Fourier transform imaging spectrometer, with goals to analyze the abundance and distribution of chemical elements on the lunar surface. IIM data suffer from various degradations, w…
View article: Polarization-based enhancement of ocean color signal for estimating suspended particulate matter: radiative transfer simulations and laboratory measurements
Polarization-based enhancement of ocean color signal for estimating suspended particulate matter: radiative transfer simulations and laboratory measurements Open
Absorption and scattering by molecules, aerosols and hydrosols, and the reflection and transmission over the sea surface can modify the original polarization state of sunlight. However, water-leaving radiance polarization, containing embed…
View article: Recent Advances in the Synthesis of Organophosphorus Compounds via Cross Coupling between Readily Available Materials and P-H Compounds
Recent Advances in the Synthesis of Organophosphorus Compounds via Cross Coupling between Readily Available Materials and P-H Compounds Open