Gem dicyano époxydes équivalents synthét
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A.Majcen Le Maréchal; A. Robert; I. Leban
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Article
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1990
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Elsevier Science
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French
⚖ 756 KB
The nucleophilic ring opening of gem dicyano epoxides by N-substituted or N-N' disubstituted thioureas leads to 2-imino 4-thiazolidinoncs, via postulated cyanoformyl intermediates, compounds 7 can exist in tautomeric equilibrium with a tautomeric 2-amino 4-hydroxy thiazolines. However, the cyanoform