Zobrazeno 1 - 10
of 93
pro vyhledávání: '"András Messmer"'
Publikováno v:
ARKIVOC, Vol 2012, Iss 5, Pp 146-162 (2012)
Externí odkaz:
https://doaj.org/article/48d5a59c0ef845cd890b2e90baec4e4c
Publikováno v:
ARKIVOC, Vol 2004, Iss 7, Pp 177-182 (2004)
Externí odkaz:
https://doaj.org/article/0fcb496c3bfd4885a7604afb21d9ec8e
Publikováno v:
ARKIVOC, Vol 2003, Iss 14, Pp 155-161 (2003)
Externí odkaz:
https://doaj.org/article/d5d8524ee9d24ad7b34f6834545472f2
Publikováno v:
ARKIVOC, Vol 2012, Iss 5, Pp 146-162 (2012)
The reactivity of the new 1,2,3-triazole-substituted vinamidines ( i.e. 1-azabutadienes) was investigated. They were used as synthons to obtain new pyrazole, di-1,2,3-triazole as well as 4- amino-1,2,3-triazole derivatives. The Diels-Alder reaction w
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 101:597-607
Two synthetic pathways have been elaborated for the synthesis of pyrido[1,2-b]-as-triazinium salts and were also extended to the linearly fused as-triazino[2,3-b]isoquinolinium and the angularly fused as-triazino[3,2-a]isoquinolinium systems. The rin
Publikováno v:
ARKIVOC, Vol 2004, Iss 7, Pp 177-182 (2004)
Ring opening of tetrazolopyridinium salts with phenothiazines yielded stable cis-trans tetrazolyldienamines. One of the new derivatives proved to inhibit significantly the multidrug resistant efflux pump mechanism and, thus, these new phenothiazine d
Publikováno v:
ARKIVOC, Vol 2003, Iss 14, Pp 155-161 (2003)
Pyrido[1,2-b][1,2,4]triazinium salts easily form covalent hydrates in the presence of traces of water and readily react with various nucleophilic anions (e.g. hydoxide, alkoxide, or cyanide ions) to yield stable crystalline addition products (i.e. ps
Autor:
Orsolya Egyed, Tibor Soós, Péter Kövér, György Hajós, László Fábián, András Messmer, Zsuzsanna Riedl
Publikováno v:
The Journal of Organic Chemistry. 68:5652-5659
2-Arylsulfanyl and 2-benzylsulfanylpyridinium N-arylimides (2) easily prepared from 3-aryltetrazolopyridinium salts (1) with aryl and benzylthiolates, respectively, reacted with various dipolarophiles yielding cycloadducts that underwent transformati
Publikováno v:
Tetrahedron. 59:4297-4301
The chemical reactivity of the [1,2,3]triazolo[1,5-a]- and [1,5-c]-pyrimidinium salts towards morpholine, water and sodium methoxide have been studied. Among others, new 1-aza and 2-azabutadienes substituted by a [1,2,3]-triazole ring were obtained i
Publikováno v:
Tetrahedron. 58:3613-3618
3-Aryltetrazolopyridinium salts react with thiophenolates to afford stable arylthio substituted pyridinium N-arylimide zwitterions as red crystals. The angularly fused tetrazolo[1,5-a]quinolinium salt react analogously and also yielded a blue zwitter