Hongfei Yin

China Tobacco

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Troels Skrydstrup

Aarhus University

Anders T. Lindhardt

Aarhus University

Dennis U. Nielsen

Aarhus University

Rubén Martı́n

Institució Catalana de Recerca i Estudis Avançats

Jacob Overgaard

Aarhus University

Espen Z. Eikeland

Aarhus University

Mathias Flinker

Aarhus University

Xiao‐Feng Wu

Leibniz Institute for Catalysis

Anke Spannenberg

Leibniz Institute for Catalysis

Wanfang Li

University of Shanghai for Science and Technology

Cooperative Institutions

Aarhus University

Chinese Academy of Sciences

Institut Català d'Investigació Química

University of Chinese Academy of Sciences

China Tobacco

Leibniz Institute for Catalysis

Centre National de la Recherche Scientifique

Nanchang University

University of Bologna

Henan Agricultural University

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Nicotine detection in tobacco samples via a molecularly imprinted polymers sensing platform

International Journal of Electrochemical Science (2024)

Yaoguang Li Lanjun Shao Qianjin Liu Lei Li Yinghao Zhang

A highly sensitive and selective molecularly imprinted polymer (MIP) sensing platform was developed for the detection of nicotine in tobacco samples. The MIP sensor was fabricated by integrating a PtNPs/GO nanocomposite with an electropolymerized nicotine-imprinted film on a glassy carbon electrode. Under optimal conditions (pH 7.4, 50 mM pyrrole, and 30 min elution time), the MIP sensor exhibited a wide linear range (0.01-0.5 μM and 0.5-100 μM), low detection limit (0.015 μM), good reproducibility (RSD < 4.2%), and long-term stability (93.2% retention after 30 days). The MIP sensor demonstrated excellent selectivity towards nicotine, with selectivity coefficients ranging from 7.2 to 9.5 against interfering substances. The practical applicability of the MIP sensor was validated by analyzing nicotine content in cigarettes and chewing tobacco samples, with recoveries ranging from 97.5% to 102.8% and relative errors within ±5% compared to the reference GC-MS method. The proposed MIP-based electrochemical sensing platform offers a rapid, simple, and cost-effective approach for sensitive and selective detection of nicotine in complex tobacco matrices, showing great potential for applications in the tobacco industry and public health sector.

Molecularly imprinted polymer

Linear range

10.1016/j.ijoes.2024.100592

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Citations (0)

CCDC 1403858: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Chaoren Shen Wanfang Li Hongfei Yin Anke Spannenberg Troels Skrydstrup

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.5517/cc1j3tr6

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Dual Catalytic Platform for Enabling sp³ α C–H Arylation and Alkylation of Benzamides

ACS Catalysis (2020)

Alexander W. Rand Hongfei Yin Liang Xu Jessica Giacoboni Raúl Martín‐Montero

A dual catalytic sp3 α C–H arylation and alkylation of benzamides with organic halides is described. This protocol exhibits an exquisite site selectivity, chemoselectivity, and enantioselectivity pattern, offering a complementary reactivity mode to existing sp3 arylation or alkylations via transition metal catalysis or photoredox events.

Chemoselectivity

Reactivity

10.1021/acscatal.0c01318

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Citations (113)

ChemInform Abstract: Pd‐Catalyzed Carbonylative Access to Aroyl Phosphonates from (Hetero)aryl Bromides.

ChemInform (2015)

Zhong Lian Hongfei Yin Stig D. Friis Troels Skrydstrup

Abstract This is the first transition‐metal catalyzed carbonylation with a phosphorus nucleophile.

Carbonylation

10.1002/chin.201539172

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Palladium‐Catalyzed Carbonylative Synthesis of 2,3‐Disubstituted Chromones

Advanced Synthesis & Catalysis (2016)

Chaoren Shen Wanfang Li Hongfei Yin Anke Spannenberg Troels Skrydstrup

Abstract An unexpected palladium‐catalyzed carbonylative synthesis of 2,3‐disubstituted chromones has been developed. Starting from 2‐bromofluorobenzenes and ketones, the corresponding chromones were produced in good yields. By control experiments, this transformation was found to proceed through a sequential carbonylation/Claisen–Hasse rearrangement/intramolecular nucleophilic aromatic substitution approach (S N Ar). More specifically, the reaction sequence started with a palladium‐catalyzed carbonylation of the ketone with o ‐bromofluorobenzene to give the vinyl benzoates, which subsequently transformed into 1,3‐diketones via a Claisen–Hasse rearrangement. The final products were produced after an intramolecular S N Ar reaction of the in situ formed 1,3‐diketone. magnified image

Carbonylation

10.1002/adsc.201500858

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Citations (30)

Efficient Water Reduction with sp³‐sp³ Diboron(4) Compounds: Application to Hydrogenations, H–D Exchange Reactions, and Carbonyl Reductions

Angewandte Chemie International Edition (2017)

Mathias Flinker Hongfei Yin René W. Juhl Espen Z. Eikeland Jacob Overgaard

Abstract A series of crystalline sp 3 ‐sp 3 diboron(4) compounds were synthesized and shown to promote the facile reduction of water with dihydrogen formation. The application of these diborons as simple and effective dihydrogen and dideuterium sources was demonstrated by conducting a series of selective reductions of alkynes and alkenes, and hydrogen–deuterium exchange reactions using two‐chamber reactors. Finally, as the water reduction reaction generates an intermediate borohydride species, a range of aldehydes and ketones were reduced by using water as the hydride source.

10.1002/anie.201709685

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Citations (59)

NICKEL CATALYZED REDUCTIVE DEAMINATIVE ARYLATION AT sp 3 CARBON CENTERS

Proceedings of European Symposium on Organic Chemistry 2019 (2019)

Raúl Martín‐Montero Reddy Yatham Hongfei Yin Jacob Davies Rubén Martı́n

Carbon fibers

Source

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Development of a Palladium-Catalyzed Carbonylative Coupling Strategy to 1,4-Diketones

ACS Catalysis (2016)

Hongfei Yin Dennis U. Nielsen Mette K. Johansen Anders T. Lindhardt Troels Skrydstrup

We report on a three-component palladium-catalyzed coupling strategy for accessing a wide range of 1,4-diketones, which represent important precursors to heterocycles. Our method relies on a carbonylative Heck reaction employing substituted allylic alcohols, aryl iodides, and carbon monoxide. The reaction conditions are mild and do not require high CO pressure, and a wide functional group tolerance is revealed, providing the desired 1,4-diketones in moderate to good yields. Furthermore, the methodology is adaptable to the selective installment of 13C-carbon isotopes at either one or both of the carbonyl positions.

Functional group

Carbonylation

Heck Reaction

Coupling reaction

10.1021/acscatal.6b00733

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Citations (38)

CCDC 1557001: Experimental Crystal Structure Determination

The Cambridge Structural Database (2017)

Hongfei Yin Troels Skrydstrup

Crystal (programming language)

10.5517/ccdc.csd.cc1p85vz