Five-Membered Heterocyclic Compounds with Two Different Hetero-Atoms in the Ring

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter discusses the synthesis, physical and chemical properties of isoxazole and its homologs and derivatives, such as aminoisoxazoles, hydroxyisoxazoles (isoxazolinones, or isoxazolones) and their sulfur analogues, isoxazole carboxylic acids, reduced systems, such as isoxazolines (dihydroisoxazoles), 2-isoxazolines, 4-isoxazolines, isoxazofidines (tetrahydroisoxazoles), and isoxazolidinones. Interest in the derivatives of oxazole was renewed because of their significance in penicillin chemistry. The most familiar example is annnioline, which is obtained from the rye grass Lolium multiflorum. Phenanthroxazoles are synthesized from phenanthrene quinones or better when phenanthrene quinone-imines are heated with primary amines. There are over six hundred patents referring to the application of benzoxazole derivatives as optical brightners and scintillators for cottons and polyesters. Isothiazoles are aromatic in nature, more stable than isoxazoles, and most susceptible to electrophilic attack at C-4. For benzisothiazoles, two structural types are possible depending on which face (c or d) of the heterocycle is fused to the benzene nucleus, benzo[d]isothiazole and benzo[c]isothiazole are more generally known as 1,2-benzisothiazole (or thioindoxazene) and 2,1-benzisothiazole (or thioanthranil), respectively. Selenazoles are the selenium analogues of thiazoles and are prepared in similar ways, although with greater difficulty, a fact accentuated by the toxicity of the necessary intermediates.
LanguageEnglish
Title of host publicationRodd's Chemistry of Carbon Compounds
Subtitle of host publicationA Modern Comprehensive Treatise
PublisherElsevier
Pages243-504
Number of pages262
Volume4
Edition2
ISBN (Print)9780444533456
DOIs
StatusPublished - 1964

Fingerprint

Isoxazoles
Heterocyclic Compounds
Derivatives
Atoms
Benzoxazoles
Oxazoles
Thiazoles
Quinones
Polyesters
Imines
Selenium
Carboxylic Acids
Benzene
Sulfur
Penicillins
Phosphors
Chemical properties
Cotton
Amines
Toxicity

Cite this

Sainsbury, M. (1964). Five-Membered Heterocyclic Compounds with Two Different Hetero-Atoms in the Ring. In Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise (2 ed., Vol. 4, pp. 243-504). Elsevier. https://doi.org/10.1016/B978-044453345-6.50718-5

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

Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. Vol. 4 2. ed. Elsevier, 1964. p. 243-504.

Research output: Chapter in Book/Report/Conference proceedingChapter

Sainsbury, M 1964, Five-Membered Heterocyclic Compounds with Two Different Hetero-Atoms in the Ring. in Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. 2 edn, vol. 4, Elsevier, pp. 243-504. https://doi.org/10.1016/B978-044453345-6.50718-5
Sainsbury M. Five-Membered Heterocyclic Compounds with Two Different Hetero-Atoms in the Ring. In Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. 2 ed. Vol. 4. Elsevier. 1964. p. 243-504 https://doi.org/10.1016/B978-044453345-6.50718-5
Sainsbury, M. / Five-Membered Heterocyclic Compounds with Two Different Hetero-Atoms in the Ring. Rodd's Chemistry of Carbon Compounds: A Modern Comprehensive Treatise. Vol. 4 2. ed. Elsevier, 1964. pp. 243-504
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