Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter discusses the five- membered heterocyclic compounds with three hetero-atoms in the ring and their preparation. Triazoles are one of the heterocyclic compounds. It has two classes: 1,2,3-triazoles and 1,2,4-triazoles. 1,2,3-triazoles are important compounds, which are applicable in the textile industry as optical brighteners and as polymer additives, and in medicine as drug substances. 1,2,3-triazoles have been prepared by a number of distinct routes. 1,2,4-triazoles are alkylated in basic media with alkyl halides to give predominantly 1-alkyl derivatives. Benzotriazoles exist as 1H- or 2H- structures. When unsubstituted at nitrogen the 1H-aromatic isomers are preferred. Four ring systems of oxadiazoles are namely 1,2,3-, 1,2,4-, 1,2,5- and 1,3,4-oxidiazoles. 1, 2, 5-oxadiazoles are known furazans and their benzo derivatives are known as 2,1,3-benzoxadiazoles. Five-membered rings containing one sulfur and two nitrogen atoms are called thiadiazoles. There are four classes of thiadiazoles and in addition there are two types of benzothiadiazoles. The chemistry and preparative methods of selenadiazoles are usually very similar. These compounds are available through the action of selenium dioxide in acetic acid upon semicarbazones.There are only a few references in the chemical literature to dioxazoles. It has six possible representations including tautomers.
LanguageEnglish
Title of host publicationRodd's Chemistry of Carbon Compounds
Subtitle of host publicationA Modern Comprehensive Treatise
PublisherElsevier
Pages1-209
Number of pages209
Volume4
Edition2nd
ISBN (Print)9780444533456
DOIs
StatusPublished - 1964

Fingerprint

Heterocyclic Compounds
Triazoles
Thiadiazoles
Oxadiazoles
Atoms
Selenium Oxides
Nitrogen
Semicarbazones
Derivatives
Textile industry
Sulfur
Acetic Acid
Isomers
Medicine
Polymers
Pharmaceutical Preparations
1,2,4-triazole

Cite this

Sainsbury, M. (1964). Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring. In Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise (2nd ed., Vol. 4, pp. 1-209). Elsevier. https://doi.org/10.1016/B978-044453345-6.50727-6

Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring. / Sainsbury, M.

Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. Vol. 4 2nd. ed. Elsevier, 1964. p. 1-209.

Research output: Chapter in Book/Report/Conference proceedingChapter

Sainsbury, M 1964, Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring. in Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. 2nd edn, vol. 4, Elsevier, pp. 1-209. https://doi.org/10.1016/B978-044453345-6.50727-6
Sainsbury M. Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring. In Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. 2nd ed. Vol. 4. Elsevier. 1964. p. 1-209 https://doi.org/10.1016/B978-044453345-6.50727-6
Sainsbury, M. / Five-Membered Heterocyclic Compounds with Three Hetero-Atoms in the Ring. Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. Vol. 4 2nd. ed. Elsevier, 1964. pp. 1-209
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