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Mesoionische 2-methylen-1.3.4-oxadiazole und -thiadiazole

✍ Scribed by Rudolf Grashey; Margit Baumann; Rainer Hamprecht


Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
108 KB
Volume
11
Category
Article
ISSN
0040-4039

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πŸ“œ SIMILAR VOLUMES


Mesoionische 3-Methylen-1,2,4-triazole
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Synthesen mit 2,4-Dimethylen-1,3-dithiet
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The thioketene carboxylates 6, generated in situ from 2,4-dimethylene-l,3-dithietanes 1, undergo cyclocondensation with aminocrotonic acid derivatives 5 to give the 4-mercaptopyridines 4, whereas with the esters 7 of glycine and thioglycolic acid the alkylidenethiazolidine and alkylidene-l,3-dithiol

Mesoionische 1.3.4-thiadiazolone-(2)
✍ Rudolf Grashey; Margit Baumann; Wolf-Dietmar Lubos πŸ“‚ Article πŸ“… 1968 πŸ› Elsevier Science 🌐 French βš– 192 KB

Whrend mesoionische 1.3.4~Thiadiazol-2-thione f seit der erstmafigen Raretellung durch H. Busch 31 das Interesse einer Reihe von Arbeftskreiseo gefunden haben 4', blieben die entsprechenden 1.3.4-Thiadiazolone 2 bis in j-gste Zeit unbekannt. Zwei kurae Hitteilungen von A.Y. LXZARIS sowie K.T. POTPS

2-Methyl-5-[3-(4-nitrophenyl)-1,2,4-oxad
✍ Wang, Pin-Liang ;Kang, Si-Shun ;Li, Hai-Ling ;Zeng, Hai-Su ;Wang, Hai-Bo πŸ“‚ Article πŸ“… 2007 πŸ› International Union of Crystallography 🌐 English βš– 490 KB

The title compound, C~12~H~9~N~5~O~3~S~2~, was synthesized __via__ condensation of 1,2,4-oxadiazole chloromethane with 1,3,4-thiadiazolethiol. The benzene and oxadiazole rings are almost coplanar, making a twist angle of only 4.6β€…(3)Β°, but the thiadiazole ring deviates from the molecular plane, maki