Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Pyridazine derivative and related compound, part 18: Pyridazino{[}3 `, 4 `: 3,4]pyrazolo{[}5,1-c]-1,2,4-triazine-3-carboxylic acid: Synthesis, reactions, and antimicrobial activity
Faculty
Science
Year:
2006
Type of Publication:
Article
Pages:
2505-2517
Authors:
Deeb, Ali, El-Mariah, Fatma, Hosny, Mona
DOI:
10.1080/10426500600754786
Journal:
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS TAYLOR \& FRANCIS LTD
Volume:
181
Research Area:
Chemistry
ISSN
ISI:000240636700005
Keywords :
antimicrobial, 3-subsitituted pyridazinopyrazolotriazines
Abstract:
A series of 3-substituted pyridazino{[}3',4':3,4]pyrazolo{[}5,1-c]-1,2,4-triazens have been synthesized starting from the 3-carboxylic acid derivative 2. The reaction of the acid chloride 3 with amines gave the corresponding anilides 4. The reaction of 2 with ethyl chloroformate and sodium azide in the presence of triethyl amine gave the carbonyl azide 5, which underwent a Curtius rearrangement in boiling ethanol to afford the carbamate 6, which converted to the 3-amino derivative 7 upon alkaline hydrolysis, and the reaction with acid chloride resulted in N-substituted products 9. On other hand, the reaction of the carboxylic acid 2 with POCl3 and thiosemicarbazide afforded 2-amino-1,3,4-thiadiazole derivative 13. The condensation of 13 with aldehydes furnished 14 in a good yield. The products were screened for their antimicrobial activity against six microorganisms.
Online
PDF
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف