11 KB411 KB15 KB199820252001Hahem, Ahmed I.Hamad, Abdel-Sattar S.številka:3letnik:487 stranistr. 431-437ISSN:1318-0207COBISSID:23773189URN:URN:NBN:SI:doc-7ACZCC1JenSlovensko kemijsko društvoActa chimica slovenicafuranoniheterociklične spojineheterociklični sistemioksadiazolipiridazinipiridazinonisintezastrukturaSynthetic approaches to 6-aryl-4-(2-furyl)methylidene-1-(tosylaminocarbonyl)-1,2,3,4-tetrahydropy rida zines-3-ones and 5-1-aroylmethyl-2-(2-furyl)-1-ethenyl-2-(tosylamino)-1,3,4-oxadiazoles|Novel of 6-aryl-4-(2-furyl)methylidene-1-(tosylaminocarbonyl)-1,2,3,4-tetrahydropyrida zine-3-ones 4a-d were prepared by the reaction of ?$\alpha-acryl-\beta-(2-fury)acrylic$? acid hydrazindes 2a-d with tosylisocyanate. This has been shown to occur by initial formation of ?$N^1-aroylmethyl-3-(2-fury)acroyloy-N^2-(tosylaminocarbonyl)hydrazines$? 3a-d followed by acid catalyzed cyclization to afford 5-1-aroylmethyl-2-(2-furyl)-1-ethenyl-2-(tosylamino)-1,3,4-oxadiazoles 5a-dNove derivate 6-aril-4-(2-furil)metiliden-1-(tozilaminokarbonil)-1,2,3,4-tetrahidropiri dazi n-3-onov 4a-d smo pripravili z rakcijami ?$\alfa-aracil-\beta-(2-furi)akrilohidrazidov$? 2a-d s tozilisocianatom in jih nato pretvorili v 5-1-aroilmetil-2-(2-furil)-1-etenil-2-(tozilamino)-1,3,4-oksadiazole 5a-d. Strukture spojin in intermediatov smo potrdili z analiznimi in spektroskopskimi podatkiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaSlovensko kemijsko društvo