Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Methods of Documentation V: CBE01:23

Methods of Documentation V: CBE

933
Charting by Exception, or CBE, is a method of documentation used in healthcare, particularly in nursing, that focuses on documenting only significant or abnormal findings rather than recording every detail. This approach aims to streamline the documentation process, improve efficiency, and ensure that healthcare providers can quickly identify deviations from normalcy in patient assessments.
In CBE, healthcare professionals establish predefined standards of practice that define what constitutes...
933
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

9.7K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
9.7K
Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

623
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
623
Calculating Equilibrium Concentrations02:05

Calculating Equilibrium Concentrations

48.1K
Being able to calculate equilibrium concentrations is essential to many areas of science and technology—for example, in the formulation and dosing of pharmaceutical products. After a drug is ingested or injected, it is typically involved in several chemical equilibria that affect its ultimate concentration in the body system of interest. Knowledge of the quantitative aspects of these equilibria is required to compute a dosage amount that will solicit the desired therapeutic effect.
A more...
48.1K
Frames: Problem Solving II01:26

Frames: Problem Solving II

263
Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.
263
Space Trusses: Problem Solving01:29

Space Trusses: Problem Solving

620
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
620

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Multi-target Therapeutic Potential of Baicalin in Respiratory Diseases: Mechanisms and Clinical Prospects.

Chinese journal of integrative medicine·2026
Same author

Retraction notice to "Integrated transcriptomic and metabolomic analysis reveals the role of CsCLCN7 in regulating calcium‑magnesium ratio homeostasis in the clam Cyclina sinensis" [Int. J. Biol. Macromol. 334 (2025) 148902].

International journal of biological macromolecules·2026
Same author

Real-World Evidence for Combination Sedation: Propofol Plus Dexmedetomidine and Clinical Outcomes in Mechanically Ventilated ICU Patients.

Therapeutics and clinical risk management·2026
Same author

Integration of network pharmacology, deep learning, and molecular biology reveals the efficacy of Citrus aurantium L. var. amara Engl. blossom extract in ameliorating diabetic osteoporosis.

Journal of ethnopharmacology·2026
Same author

Impact of heart rate trajectories on mortality in critically Ill patients with atrial fibrillation and heart failure: a longitudinal cohort study.

BMC cardiovascular disorders·2026
Same author

Creating highly active fluoroacetate dehalogenases via gate-based synergetic chain design.

Nature communications·2026
Same journal

An intrinsically stretchable nanowire-based sensing patch for wearable analysis of sweat chloride ion composition.

Chemical communications (Cambridge, England)·2026
Same journal

A sterically rigid-flexible balanced NHC-Pd precatalyst for room-temperature solvent-free C-N coupling of benzocyclic amines.

Chemical communications (Cambridge, England)·2026
Same journal

Portable fluorescent conjugated microporous polymer sensor coupled with a smartphone for on-site Fe<sup>3+</sup> detection in water.

Chemical communications (Cambridge, England)·2026
Same journal

Accelerated discovery of NO<sub>3</sub>RR single-atom catalysts <i>via</i> high-throughput DFT and machine learning.

Chemical communications (Cambridge, England)·2026
Same journal

Wafer-scale robust graphene electronics under industrial processing conditions.

Chemical communications (Cambridge, England)·2026
Same journal

Subnanoscale IrW oxide anodes: breaking immiscibility for high activity and durability in water electrolysis.

Chemical communications (Cambridge, England)·2026
See all related articles

Related Experiment Video

Updated: Jul 27, 2025

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.2K

B(C

Wenjie Qin1, Qian Ni1, Wenjun Jiao1

  • 1Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of Phytochemistry R&D of Hunan Province, and Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Institute of Interdisciplinary Studies, College of chemistry and chemical engineering, Hunan Normal University, Changsha 410081, P. R. China. mayh@hunnu.edu.cn.

Chemical Communications (Cambridge, England)
|June 6, 2023
PubMed
Summary
This summary is machine-generated.

A new metal-free catalysis system enables efficient synthesis of vinyl sulfones from alkynes and thiosulfonates. This breakthrough offers a green and selective method for creating valuable organic compounds.

More Related Videos

Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA
08:12

Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA

Published on: May 16, 2016

15.6K
Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter
07:44

Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter

Published on: August 12, 2021

3.2K

Related Experiment Videos

Last Updated: Jul 27, 2025

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.2K
Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA
08:12

Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA

Published on: May 16, 2016

15.6K
Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter
07:44

Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter

Published on: August 12, 2021

3.2K

Area of Science:

  • Organic Chemistry
  • Catalysis
  • Synthetic Methodology

Background:

  • Thiosulfonylation reactions are crucial for synthesizing sulfur-containing organic compounds.
  • Developing metal-free catalytic systems is a key goal in green chemistry.

Purpose of the Study:

  • To establish a metal-free main-group catalysis system for the thiosulfonylation of terminal alkynes.
  • To develop a highly regio- and stereoselective synthetic route for (E)-(β)-arylthiolvinyl sulfones.

Main Methods:

  • Utilized commercially available B(C6F5)3 as a catalyst.
  • Employed terminal alkynes and thiosulfonates as starting materials.
  • Optimized reaction conditions for mildness and efficiency.

Main Results:

  • Achieved a novel metal-free catalysis system for thiosulfonylation.
  • Synthesized diverse (E)-(β)-arylthiolvinyl sulfones with high regio- and stereoselectivity.
  • Demonstrated 100% atom-economy and exceptional functional group compatibility.

Conclusions:

  • The developed protocol offers an efficient, selective, and environmentally friendly method for synthesizing vinyl sulfones.
  • This metal-free approach expands the toolkit for constructing complex sulfur-containing molecules.