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

Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN101:14

Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1

2.7K
Treating arylamines with nitrous acid gives aryldiazonium salts that are effective substrates in nucleophilic aromatic substitution reactions. The diazonio group in these salts can be easily displaced by different nucleophiles, yielding a wide variety of substituted benzenes. The leaving group departs as nitrogen gas, and this easy elimination is the driving force for the substitution reaction.
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
2.7K
Aromatic Compounds: Overview01:25

Aromatic Compounds: Overview

13.7K
In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday isolated...
13.7K
Basicity of Aromatic Amines01:18

Basicity of Aromatic Amines

8.0K
The basicity of aromatic amines is much weaker than that of aliphatic amines due to the involvement of the lone pair of electrons over the N atom in resonance with the aryl rings. Generally, the electron-donating ability of any substituents on the aryl ring of aromatic amines increases the basicity of the amine by increasing electron density, and hence the availability of lone pair on the nitrogen. On the other hand, electron-withdrawing functional groups on the aryl ring of amines decrease the...
8.0K
Nomenclature of Aromatic Compounds with a Single Substituent01:23

Nomenclature of Aromatic Compounds with a Single Substituent

10.0K
Benzene is the simplest aromatic hydrocarbon or arene. The IUPAC names for simple monosubstituted benzene derivatives are derived by adding the substituent's name as a prefix to the parent benzene. For example, halobenzene, where the halogen could be fluoro (F), chloro (Cl), bromo (Br), and iodo (I).
10.0K
Five-Membered Heterocyclic Aromatic Compounds: Overview01:13

Five-Membered Heterocyclic Aromatic Compounds: Overview

5.4K
Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom,...
5.4K
Nucleophilic Aromatic Substitution: Addition–Elimination (SNAr)01:30

Nucleophilic Aromatic Substitution: Addition–Elimination (SNAr)

4.7K
Nucleophilic substitution in aromatic compounds is feasible in substrates bearing strong electron-withdrawing substituents positioned ortho or para to the leaving group. The reaction proceeds via two steps: the addition of the nucleophile and the elimination of the leaving group.
The reaction begins with an attack of the nucleophile on the carbon that holds the leaving group. This results in the delocalization of the π electrons over the ring carbons. The resonance interaction between...
4.7K

You might also read

Related Articles

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

Sort by
Same author

Corrigendum to "Bioenergetic benefits and therapeutic potential of storable mitochondria" [Biochem. Biophys. Res. Commun. 828 (2026) 154119].

Biochemical and biophysical research communications·2026
Same author

In-Hospital Rehabilitation for Frailty Management May Improve Quality of Life in Patients Receiving Maintenance Dialysis: A Retrospective Observational Study.

Cureus·2026
Same author

Bioenergetic benefits and therapeutic potential of storable mitochondria.

Biochemical and biophysical research communications·2026
Same author

Antioxidant Effects of Exogenous Mitochondria: The Role of Outer Membrane Integrity.

Antioxidants (Basel, Switzerland)·2025
Same author

A method for isolating and cryopreserving intact mitochondria with improved integrity and functionality.

Biophysics and physicobiology·2025
Same author

Kumada-Tamao Catalyst-Transfer Condensation Polymerization of AB<sub>2</sub> Monomer: Synthesis of Well-Defined Hyperbranched Poly(thienylene-phenylene).

Macromolecular rapid communications·2025

Related Experiment Video

Updated: Jan 26, 2026

Bioorthogonal Chemical Imaging of Cell Metabolism Regulated by Aromatic Amino Acids
10:42

Bioorthogonal Chemical Imaging of Cell Metabolism Regulated by Aromatic Amino Acids

Published on: May 12, 2023

1.5K

Photodeprotectable N-Alkoxybenzyl Aromatic Polyamides.

Kenichi Iwashita1,2, Hironobu Katoh3, Yoshihiro Ohta4

  • 1Photosensitive Material R&D Department, Hitachi Chemical Co. Ltd., 4-13-1 Hitachi, Ibaraki 317-8555, Japan. k-iwashita@hitachi-chem.co.jp.

Polymers
|April 12, 2019
PubMed
Summary

New N-alkoxybenzyl aromatic polyamides offer enhanced solubility and photosensitivity. These cyclic polymers are promising for creating heat-resistant materials for advanced semiconductor packaging and fine copper wiring.

Keywords:
N-protected polyamidephoto acid generatorphotodeprotectionpolycondensation

More Related Videos

A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter
04:39

A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter

Published on: June 13, 2025

673
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.9K

Related Experiment Videos

Last Updated: Jan 26, 2026

Bioorthogonal Chemical Imaging of Cell Metabolism Regulated by Aromatic Amino Acids
10:42

Bioorthogonal Chemical Imaging of Cell Metabolism Regulated by Aromatic Amino Acids

Published on: May 12, 2023

1.5K
A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter
04:39

A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter

Published on: June 13, 2025

673
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.9K

Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Organic Synthesis

Background:

  • Aromatic polyamides are crucial in high-performance applications.
  • Improving solubility and processability of polyamides is a key challenge.
  • Developing photosensitive materials is essential for microelectronics fabrication.

Purpose of the Study:

  • To synthesize novel N-alkoxybenzyl aromatic polyamides.
  • To investigate their properties, including solubility and photodeprotection.
  • To evaluate their potential for fine copper wiring in semiconductor packaging.

Main Methods:

  • Polycondensation reaction of N-alkoxybenzyl aromatic diamine and dicarboxylic acid chloride.
  • Characterization of polymer structure using matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry.
  • Photodeprotection experiments using UV irradiation and a photo acid generator (PAG).

Main Results:

  • Synthesis of N-alkoxybenzyl aromatic polyamides, predominantly cyclic structures.
  • Demonstrated higher solubility in organic solvents compared to unprotected analogues.
  • Successful photodeprotection under UV irradiation, with reactivity dependent on polymer end groups.

Conclusions:

  • N-alkoxybenzyl aromatic polyamides exhibit improved solubility and photosensitive properties.
  • The developed polymers are suitable for creating heat-resistant materials.
  • These materials show promise for fine copper wiring formation in high-density semiconductor packaging.