Four- and Five-membered Cyclic Disulphides

Autor:	O V Kil'disheva, T. P. Vasil'eva, M G Lin'kova
Rok vydání:	1976
Předmět:	Polarography Nucleophile Chemistry Reagent Photodissociation Electrophile Organic chemistry General Chemistry Ring (chemistry)
Zdroj:	Russian Chemical Reviews. 45:639-659
ISSN:	1468-4837 0036-021X
DOI:	10.1070/rc1976v045n07abeh002700
Popis:	The principal methods for synthesising 1,2-dithiolans are surveyed, together with their advantages and disadvantages. Information is given on the geometry of the 1,2-dithiolan ring. The polarography, photolysis, and spectra of 1,2-dithiolans are discussed, and results are given for their polymerisation, reduction, oxidation, and chlorolysis, as well as the removal of a sulphur atom. Data are presented on the biological importance and application of 1,2-dithiolans. The major part of the review is devoted to the chemistry of unsaturated five-membered cyclic disulphides ? the 3-thiones, 3-ones, 3-imines, and 3-ylidenes of 1,2-dithiolens ? with methods of preparation and both chemical and physical properties. A detailed examination is made of their reactions with electrophilic and nucleophilic reagents, as well as condensations. Fields of practical application of 1,2-dithiolens are surveyed. The review concludes with 233 references.
Databáze:	OpenAIRE
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