Related Experiment Video
Updated: Jun 19, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
Published on: November 15, 2017
New syntheses of diazo compounds
1Institute for Organic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, Ulm, Germany. gerhard.maas@uni-ulm.de
Diazo compounds are versatile chemical building blocks. New and improved methods for synthesizing these reactive molecules are continually being developed, including greener approaches.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
Background:
- Diazo compounds are highly reactive and versatile synthetic intermediates.
- Their unique chemical properties make them valuable in various transformations.
- Research continues to explore their synthetic utility and preparation.
Purpose of the Study:
- To review and highlight recent advancements in the synthesis of diazo compounds.
- To showcase novel methodologies and variations of established procedures.
- To emphasize the development of environmentally benign synthetic routes.
Main Methods:
- Literature review of recent synthetic methods for diazo compounds.
- Analysis of novel synthetic strategies and established procedure variations.
- Focus on approaches considering compound lability and reactivity.
- Inclusion of green chemistry principles in synthetic development.
Main Results:
- Continuous expansion of the synthetic toolbox for diazo compounds.
- Development of new methods addressing reactivity and lability.
- Emergence of more environmentally friendly synthetic procedures.
- Sustained interest and innovation in diazo chemistry.
Conclusions:
- Diazo chemistry remains a dynamic and fascinating field.
- Ongoing research yields novel and efficient synthetic methods.
- A trend towards sustainable and greener synthetic approaches is evident.
More Related Videos
Related Concept Videos
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Diazonium Group Substitution: –OH and –H
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...

![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)