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العنوان
Studies on some Heterocycles Containing Sulfur Oxygen and Nitrogen /
المؤلف
Rizk, Hala Fawzy.
هيئة الاعداد
باحث / هالة فوزى رزق
مشرف / محمد عبد العزيز البرعى
مناقش / عبد الرحمن ناصر
مناقش / نبيل عبد الخالق
الموضوع
Chemistry.
تاريخ النشر
1989.
عدد الصفحات
89 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الكيمياء
تاريخ الإجازة
1/1/1989
مكان الإجازة
جامعة طنطا - كلية العلوم * - Chemistry
الفهرس
Only 14 pages are availabe for public view

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Abstract

The present work deals with some reactions of thiophene-2- carbohydrazide I When I was condensed with carbon-disulfide in ethanolic potassium hydroxide the potassium - dithiocarbazate was formed which on treatment with hydrazine was cyclized to N-amino-2- mercapto-l,3,4-triazole II Interaction of compound llwith acid chlorides led to the formation of the corresponding amide followed by ring closure to give the s-triazole derivatives Ill When compound II is subjected to react with phenacyl bromide in the presence of fused sodium acetate the cyclized compound V was obtained , while carrying out the reaction without sodium acetate the uncyclized compound IV was only obtained.