• Issue

    Chinese Journal of Chemistry: Volume 43, Issue 9

    973-1096
    1 May 2025

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  • Page: 973
  • First Published: 01 April 2025
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A well-controlled segment structure is essential for achieving high-performance copolymers. A series of block type cyclic olefin copolymers which are composed of both high glass transition temperature, rigid segment and low glass transition temperature, soft segment, and feature high mechanical strength and heat resistance, excellent transparency, and remarkable toughness were developed. These materials were successfully employed in modification of different polyethylenes. More details are discussed in the article by Huang et al. on pages 983—994.

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  • Page: 974
  • First Published: 01 April 2025
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Dimeric cyclotryptamine alkaloids are a large class of structurally intricate and biologically active natural products that have attracted significant attention from synthetic community. Herein, we developed a phosphine-catalyzed divergent γ,γ- and ε,γ-umpolung domino addition of bisoxindoles with allenoates and applied it to the syntheses of calycanthine, chimonanthine and folicanthine. More details are discussed in the article by Wang et al. on pages 995—1000.

Contents

Contents

  • Pages: 977-981
  • First Published: 01 April 2025

Concise Report

Well-Controlled Block-Type Cyclic Olefin Copolymers with High Heat Resistance, Outstanding Strength and Low-Temperature Toughness

  • Pages: 983-994
  • First Published: 28 January 2025
Well-Controlled Block-Type Cyclic Olefin Copolymers with High Heat Resistance, Outstanding Strength and Low-Temperature Toughness

Well-designed block COCs with tunable hard/soft segments were efficiently prepared. Block COCs exhibited high transparency and outstanding toughness even at –196 °C. Block COCs modified commercial PEs to achieve excellent comprehensive properties.

Phosphine-Catalyzed Divergent γ,γ- and ε,γ-Umpolung Domino Additions of Bisoxindoles with Allenoates: Construction of Vicinal All-Carbon Quaternary Stereocenters and Formal Total Synthesis of Dimeric Cyclotryptamine Alkaloids

  • Pages: 995-1000
  • First Published: 25 January 2025
Phosphine-Catalyzed Divergent γ,γ- and ε,γ-Umpolung Domino Additions of Bisoxindoles with Allenoates: Construction of Vicinal All-Carbon Quaternary Stereocenters and Formal Total Synthesis of Dimeric Cyclotryptamine Alkaloids

Herein, we report a phosphine-catalyzed divergent γ,γ- and ε,γ-umpolung domino addition of bisoxindoles with allenoates for the concise synthesis of a series of bisoxindole derivatives bearing sterically hindered vicinal all-carbon quaternary stereocenters and formal total syntheses of calycanthine, chimonanthine and folicanthine.

Temperature-Responsive Photoluminescence of 1D Chiral Lead Halide Perovskites with Highly Anisotropic Second Harmonic Generation

  • Pages: 1001-1008
  • First Published: 31 January 2025
Temperature-Responsive Photoluminescence of 1D Chiral Lead Halide Perovskites with Highly Anisotropic Second Harmonic Generation

This work reports the linear and nonlinear optical properties of a pair of newly synthesized 1D chiral lead halide perovskite. The efficient second harmonic generation with a near-unity polarization ratio is observed due to the intrinsic non-centrosymmetricity. The highly distorted structure leads to broadband emission at room temperature which can be regulated by external temperature.

Divergent Synthesis of Four Types of Fused N-Containing Heterocycles via Oxidative Multi-Component Cyclization Reaction

  • Pages: 1009-1014
  • First Published: 31 January 2025
Divergent Synthesis of Four Types of Fused N-Containing Heterocycles via Oxidative Multi-Component Cyclization Reaction

An atmospheric-oxygen-mediated four-component reaction was developed for the divergent synthesis of pyrazolo[1,5-a]pyrimidine and pyrazolo[3,4-b]pyridine derivatives from readily available alcohols and 3-aminopyrazoles.

Lantern-Like Diplatinum(III)-Catalyzed Redox-Free Borylation or Silylation of Alkynes

  • Pages: 1015-1020
  • First Published: 31 January 2025
Lantern-Like Diplatinum(III)-Catalyzed Redox-Free Borylation or Silylation of Alkynes

Described herein is an unprecedented example of binuclear platinum-catalyzed hydrosilylation, monoborylation and diboration reaction of alkynes. The mechanistic investigation by control experiments, kinetic isotope effect (KIE) study, Hammett plots, NMR spectra, UV−vis spectra, and X-ray photoelectron spectroscopy (XPS) reveal that this reaction passes through a σ-bond metathesis process rather than the two-electron redox processes.

Halogen Modulation and Physical Property Variation in Two Novel Mixed-Cation Organic-Inorganic Hybrid Perovskites

  • Pages: 1029-1034
  • First Published: 11 February 2025
Halogen Modulation and Physical Property Variation in Two Novel Mixed-Cation Organic-Inorganic Hybrid Perovskites†

Halogen modulation in mixed-cation hybrid perovskites leads to distinct physical properties. Compound 1 crystallizes in a non-centrosymmetric space group with strong SHG, while compound 2 undergoes a ferroelastic phase transition and exhibits notable elasticity, making it suitable for flexible wearable devices. This work expands the potential for designing multifunctional mixed-cation perovskite materials.

Fast DNA-Based Molecular Classifier for Cancer Diagnosis Using Freeze-Thaw Cycling

  • Pages: 1035-1041
  • First Published: 11 February 2025
Fast DNA-Based Molecular Classifier for Cancer Diagnosis Using Freeze-Thaw Cycling†

We present a fast DNA-based molecular classifier capable of performing rapid lung cancer diagnosis based on multi-biomarker profiles.

Unlocking the Potential of Rare Earth-Enriched Aluminum Oxo Clusters for Enhanced Dielectric Properties

  • Pages: 1042-1050
  • First Published: 14 February 2025
Unlocking the Potential of Rare Earth-Enriched Aluminum Oxo Clusters for Enhanced Dielectric Properties

Doping the polymers with structural well-defined Tetrameric Cubane Heterogeneous Clusters leads to notably increased dielectric constant, breakdown strength, but maintains a low dielectric loss, particularly at high frequencies. Further, FETs based on these doped polymer dielectrics showed improved performances as well, and demonstrated great potential in ultra-low-power synapses (0.15 fJ/spike) with the ability to extract and remember the key information from a noisy environment.

Comprehensive Report

Homochiral Dy2 Schiff Base Complexes Based on (R)/(S)-Chlocyphos: Single-Molecule Magnet Behaviours, Proton Conductivities and MCD Effects

  • Pages: 1051-1058
  • First Published: 13 February 2025
Homochiral Dy2 Schiff Base Complexes Based on (R)/(S)-Chlocyphos: Single-Molecule Magnet Behaviours, Proton Conductivities and MCD Effects

(R) and (S)-chlocyphos are used as chiral bridging ligands in the assembly of homochiral multifunctional Dy2 Schiff base complexes, which exhibit field-induced single-molecule magnet behaviours, strong magnetic circular dichroism (MCD) effects, and proton conductivitives induced by intermolecular hydrogen bonding.

Critical Review

Recent Natural Product Total Syntheses Involving Cycloadditions of Allenes

  • Pages: 1059-1077
  • First Published: 11 February 2025
Recent Natural Product Total Syntheses Involving Cycloadditions of Allenes

This review highlights the advancements made in the total synthesis of natural products through the strategic utilization of allene cycloaddition reactions over the past decade (2014—2024).

J&K Critical Review

Chiral Porous Frameworks for Enantioselective Separation and Asymmetric Catalysis

  • Pages: 1078-1089
  • First Published: 19 February 2025
Chiral Porous Frameworks for Enantioselective Separation and Asymmetric Catalysis

This review focuses on the synthetic strategy of four types of chiral porous framework materials, including CMOFs, CCOFs, CPCCs, and CPOCs. Additionally, we summarize the practical applications of these chiral materials in asymmetric catalysis and enantiomer resolution. Finally, we address some challenges in this field and propose future perspectives.

Inside Back Cover

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Inside Back Cover

  • Page: 1095
  • First Published: 01 April 2025
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Emerging homochiral porous materials are intriguing due to their remarkable properties and diverse functionalities, holding significant potential for efficient chiral resolution and asymmetric catalysis. Chiral molecules are as complex and unique as the Great Wall, and chiral framework supramolecular materials are a key part of chiral materials. Just as distinguishing the true Monkey King, scientists strive for enantiomeric purity to advance chiral separation and catalysis. More details are discussed in the review by Fang et al. on pages 1078—1089.

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  • Page: 1096
  • First Published: 01 April 2025
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A pair of one-dimensional chiral hybrid perovskites with unique bluish-white light emission were successfully constructed through rational incorporation of chiral organic spacers into lead chloride inorganic frameworks. The highly anisotropic second harmonic generation responses under linearly polarized excitation and pronounced nonlinear chiroptical effect under circularly polarized excitation were systematically demonstrated. Further details can be obtained in the article by Fang et al. on pages 1001—1008.