تعداد نشریات | 158 |
تعداد شمارهها | 6,230 |
تعداد مقالات | 67,764 |
تعداد مشاهده مقاله | 115,146,771 |
تعداد دریافت فایل اصل مقاله | 89,907,796 |
SYNTHESIS OF NOVEL HETEROCYCLIC SYSTEM 4H-IMIDAZO [ 2,l -b] PYRIDO [2,3-el [I, 3,4] THIADIGZIM | ||
Journal of Sciences, Islamic Republic of Iran | ||
مقاله 7، دوره 9، شماره 2، شهریور 1998 اصل مقاله (293.03 K) | ||
چکیده | ||
Diazotization of 3-amino-2-cMoro pyridine (3) in the presence of dithizone (5) gave dphenyl-2-phenylazo-4H-pyrid[o3 ,2-e] [1,3,4] thiadiazine (6). Reaction of 2- chloro-3-nitropyridine (2, G=H) with (5) dfordd 4-phenyl -2-phenylazo -4Hpyrido [2,3-el [1,3,4] thiadiazine (7). Reduction of the latter with H gas in the presence of Raney nickel gave the corresponding amino derivative (12). One pot condensation and cyclization of the latter with phenacyl bromide gave a novel heterocyclic system (13). | ||
عنوان مقاله [English] | ||
- | ||
چکیده [English] | ||
- | ||
آمار تعداد مشاهده مقاله: 870 تعداد دریافت فایل اصل مقاله: 973 |