9 research outputs found
Regioselective role of the hydrazide moiety in the formation of complex pyrrole-pyrazole systems
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Efficient synthesis of novel polyfunctionalised 4,5'-bithiazol-4'-ol derivatives
No full text2-Thiazolin-4-one derivatives, obtained by reaction of tert-butyl (3-methoxy-1-methyl-3-oxoprop-1-enyl)diazenecarboxylate with aryl thioamides, were transformed into 5-bromoacetyl-4-hydroxythiazole derivatives by polymer-supported reagents and simple work-up procedures. The compounds thus synthesised were coupled with thioamides bearing valuable functional groups affording novel polyfunctionalised 4,5\u2032-bithiazol-4\u2032-ol derivative
Reactions of 1,2-diaza-1,3-butadienes with propargyl alcohol as an approach to novel bi-heterocyclic systems
No full textTandem Aza-Wittig/Carbodiimide-Mediated Annulation Applicable to 1,2-Diaza-1,3-dienes for the One-Pot Synthesis of Fully Substituted 1,2-Diaminoimidazoles
No full textCleavage and reactions of some NH-BOC protected 1-aminopyrroles: a new one-pot entry to pyrrolo[1,2-b][1,2,4]triazines together with pectroscopic and X-ray studies
No full textUnexpected ring closure between hydrazono and nitro groups: a useful protocol for the synthesis of substituted pyrazolo n-oxides
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