- Synthesis of novel 1-[(1-ethoxymethylene)amino]imidazol-5(4H)-ones and 1,2,4-triazin-6(5H)-ones from optically active α-aminocarboxylic acid hydrazides
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New derivatives of 1-[(1-ethoxymethylene)amino]imidazol-5(4H)-one and 1,2,4-triazin-6(5H)-one were synthesized via reactions of optically active α-aminocarboxylic acid hydrazides and triethyl orthoesters in xylene. The factors influencing the formation of the unexpected five-membered products and attempts to elucidate the mechanism are discussed.
- Kudelko, Agnieszka,Zieliński, Wojciech,Jasiak, Karolina
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p. 4637 - 4640
(2013/08/23)
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- Synthesis of 1,2,4-Triazines, XV. - Synthesis of 1,2,4-Triazin-6(1H)-ones
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1,2,4-Triazin-6(1H)-ones 3 have been prepared by cyclization of α-ketoacyl chlorides 15 with amidrazones 14. 4,5-Dihydro-1,2,4-triazin-6(1H)-ones 5 were obtained by cyclization of amino acid hydrazides 10 with orthocarboxylates 11.Key Word: 1,2,4-Triazin-
- Neunhoeffer, Hans,Klein-Cullmann, Birgit
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p. 1271 - 1274
(2007/10/02)
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