5-(2-Fluoro-4-nitro-phen-yl)-1,3,4-thia-diazole-2-amine
1Department of Applied Chemistry, College of Science, Nanjing University of Technology, No.5 Xinmofan Road, Nanjing, Nanjing 210009, People's Republic of China.
Abstract:
The title compound, C(8)H(5)FN(4)O(2)S, was synthesized by the reaction of 2-fluoro-4-nitro-benzoic acid and thio-semicarbazide. The dihedral angle between the thia-diazole and benzene rings is 27.1 (2)°. In the crystal, inter-molecular N-H⋯N and C-H⋯O hydrogen bonds link the mol-ecules.
Related Concept Videos
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Diazonium Group Substitution: –OH and –H
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...
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
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...
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

![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)
