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

Acidity of 1-Alkynes02:42

Acidity of 1-Alkynes


The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones01:24

Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones

Acetals are formed by reacting two equivalents of alcohol with carbonyl compounds like aldehydes or ketones. Acetals are unaffected by bases, nucleophiles, oxidizing agents, and reducing agents. They serve as protecting groups for aldehydes and ketones. Acetals can be easily formed and also easily removed via mild acid hydrolysis.
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...
Electrophilic Aromatic Substitution: Friedel–Crafts Acylation of Benzene01:11

Electrophilic Aromatic Substitution: Friedel–Crafts Acylation of Benzene

The Friedel–Crafts acylation reactions involve the addition of an acyl group to an aromatic ring. These reactions proceed via electrophilic aromatic substitution by employing an acyl chloride and a Lewis acid catalyst such as aluminum chloride to form aryl ketone.
Preparation of Alkynes: Alkylation Reaction02:27

Preparation of Alkynes: Alkylation Reaction

Introduction
Alkylation of terminal alkynes with primary alkyl halides in the presence of a strong base like sodium amide is one of the common methods for the synthesis of longer carbon-chain alkynes. For example, treatment of 1-propyne with sodium amide followed by reaction with ethyl bromide yields 2-pentyne.

You might also read

Related Articles

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

Sort by
Same author

Complexin 2 contributes to the protective effect of NAD<sup>+</sup> on neuronal survival following neonatal hypoxia-ischemia.

Acta pharmacologica Sinica·2025
Same author

Genetic Inhibition of Plppr5 Aggravates Hypoxic-Ischemie-Induced Cortical Damage and Excitotoxic Phenotype.

Frontiers in neuroscience·2022
Same author

A (3,8)-Connected Metal-Organic Framework with Bending Dicarboxylate Linkers for C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub> Separation.

Inorganic chemistry·2022
Same author

PRG5 Knockout Precipitates Late-Onset Hypersusceptibility to Pilocarpine-Induced Juvenile Seizures by Exacerbating Hippocampal Zinc Signaling-Mediated Mitochondrial Damage.

Frontiers in neuroscience·2021
Same author

Proteomics for Studying the Effects of Ketogenic Diet Against Lithium Chloride/Pilocarpine Induced Epilepsy in Rats.

Frontiers in neuroscience·2020
Same author

Acute Phase Serum Leptin, Adiponectin, Interleukin-6, and Visfatin Are Altered in Chinese Children With Febrile Seizures: A Cross-Sectional Study.

Frontiers in endocrinology·2020

Related Experiment Video

Updated: Jun 1, 2026

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

Ethyl 3-[2-(p-toluene-sulfonamido)phen-yl]acrylate.

Mei-Fang Jin, Bao-Yong Zhu

    Acta Crystallographica. Section E, Structure Reports Online
    |May 18, 2011
    PubMed
    Summary

    This study details the crystal structure of a novel organic compound, C(18)H(19)NO(4)S. Molecular analysis reveals specific benzene ring orientation and hydrogen bonding that stabilizes the crystal lattice into dimers.

    Area of Science:

    • Crystallography
    • Organic Chemistry
    • Molecular Structure Analysis

    Background:

    • Understanding molecular interactions is key in materials science.
    • Crystal structure determination provides insights into chemical bonding and physical properties.

    Purpose of the Study:

    • To elucidate the crystal structure of the compound C(18)H(19)NO(4)S.
    • To analyze the intermolecular forces governing crystal packing.

    Main Methods:

    • Single-crystal X-ray diffraction was employed.
    • Analysis of bond lengths, bond angles, and intermolecular interactions.

    Main Results:

    • The crystal structure of C(18)H(19)NO(4)S was determined.
    • A dihedral angle of 52.2(7)° was observed between the two benzene rings.

    More Related Videos

    Stereolithographic 3D Printing with Renewable Acrylates
    08:28

    Stereolithographic 3D Printing with Renewable Acrylates

    Published on: September 12, 2018

    Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
    12:21

    Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

    Published on: February 6, 2016

    Related Experiment Videos

    Last Updated: Jun 1, 2026

    Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
    11:17

    Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

    Published on: January 19, 2016

    Stereolithographic 3D Printing with Renewable Acrylates
    08:28

    Stereolithographic 3D Printing with Renewable Acrylates

    Published on: September 12, 2018

    Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
    12:21

    Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

    Published on: February 6, 2016

  • N-H⋯O hydrogen bonds were identified as the primary stabilizing force, forming molecular dimers.

    • Conclusions:

    • The crystal packing is dominated by specific hydrogen bonding interactions.
    • The observed structure provides a foundation for understanding the compound's physical and chemical behavior.