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Die Desinfektionsmittel Dichlorophen(2,2′-methylen-bis-4-chlorphenol, I) und Hexachlorophen(2,2′-methylen-bis-3,4,5-trichlorphenol, II)

✍ Scribed by P. J. Schorn

Book ID
112333094
Publisher
Springer
Year
1962
Tongue
English
Weight
83 KB
Volume
192
Category
Article
ISSN
1618-2650

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✍ A.P.A. Crew; G. Jenkins; R.C. Storr; M. Yelland 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 219 KB

On heating in sulpholane 4,6-dihydrothieno[3,4-blthiophene 5,5-dioxides give 2,3dihydro-2,3-bis(methylene)thiophenes which can be intercepted in Diels-Alder reactions. Sulphur dioxide is a very efficient trap for these thiophene xylylenes giving the cyclic sulphones by cheletropic addition.