Tosylhydrazones of cycloalkenyl carbonyl compounds were subjected to base-catalysed decomposition (K2CO3-MeOH) in aim to obtain 3,4-polymethylenepyrazoles. The cycloaddition occours in high yelds and solvolysis competes with cycloaddition only with cyclopentenyl derivative.
A Route to 3,4-Polymethylenepyrazoles via Olefinic Toluene-p-sulphonylhydrazones / Bellesia, Franco; R., Grandi; Pagnoni, Ugo Maria. - In: JOURNAL OF CHEMICAL RESEARCH. - ISSN 0308-2350. - STAMPA. - s:(1981), pp. 114-115.
A Route to 3,4-Polymethylenepyrazoles via Olefinic Toluene-p-sulphonylhydrazones
BELLESIA, Franco;PAGNONI, Ugo Maria
1981
Abstract
Tosylhydrazones of cycloalkenyl carbonyl compounds were subjected to base-catalysed decomposition (K2CO3-MeOH) in aim to obtain 3,4-polymethylenepyrazoles. The cycloaddition occours in high yelds and solvolysis competes with cycloaddition only with cyclopentenyl derivative.
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