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العنوان
Synthesis of some new fused and isolated quinazoline derivatives /
المؤلف
Abo-Mosalam, Ahmed Mohamed.
هيئة الاعداد
باحث / أحمد محمد أبو مسلم محمد
مشرف / عادل عبدالھادى نصار
مناقش / فرج عبدلله العيسوى
مناقش / علاء الدين مصطفى جعفر
الموضوع
Quinazoline. Alkaloids.
تاريخ النشر
2015.
عدد الصفحات
ill. ;
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الكيمياء
الناشر
تاريخ الإجازة
31/5/2015
مكان الإجازة
جامعة المنوفية - كلية العلوم - الكيمياء
الفهرس
Only 14 pages are availabe for public view

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Abstract

A mixture of quinazolin-4-ol (1) and thionyl chloride was refluxed followed
by treating with sodium azide in dry DMF to afford 2 was formed in 95% yield
(Scheme 1).
Triphenyl phosphine and azide derivative 2 were dissolved in pyridine and
kept at room temperature for 1 h to afford 3 in 98% (Scheme 1).
The phosphinimine 3 in pyridine and concentrated ammonium hydroxide
afforded the corresponding amine 4 in 80% (Scheme 1). A solution of 4, diethyl malonate, diethyl 2-methylmalonate, diethyl 2-
ethylmalonate, diethyl 2-butylmalonate, and/or diethyl 2-phenylmalonate, and
diphenyl ether were refluxed for 1 h. Diethyl ether was added with strong stirring
and the products were collected by filtration to afford 5-9 in 53-72% yields
(Scheme 2).