The convenient synthesis of symmetrical and unsymmetrical 3,4-dialkylsulfanylfurans from 3,4-furandithiolate is described. The reactivity of the furan cycle as a diene in Diels-Alder reactions with acrylonitrile is discussed in relation to the presence of one or two thiolato substituents.
Copolymers of acrylonitrile with some furans and their Diels-Alder adducts
โ Scribed by C.Wah Chau; Allan H. Fawcett; Jane N. Mulemwa; Choo Eng Tan
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 850 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0032-3861
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The electron impact mass spectra of new compounds, 2,4-dialkyl and 2,4-diaryl substituted-5,6-dihydrocyclobuta[d]pyrimidines, are reported. The main fragmentation pathway leads to the formation of cyclobutadiene [C 4 H 4 ] ร m/z = 52 as the base peak. The FAB spectra of the adducts of cyclobutapyrim
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