Synthesis and characterization of some new quinoline-2-one, schiff bases, pyrazole and pyrazoline compounds derived from hydrazide containing isoxazoline or pyrimidine cycles
Other Title(s)
تحضير و تشخيص بعض مركبات الكوينولين-2-أون و قواعد شف و بايارزول و بايارازولين الجديدة و المشتقة من الهيدرازيد الحاوي على حلقة الأيزوكسازولين أوالبيرمدين
Joint Authors
Husayn, Duha Faruq
Jamil, Nibras Muzaffar
al-Jazrawi, Jumbad Hurmuz Tuma Musa
Source
Issue
Vol. 57, Issue 2C (30 Jun. 2016), pp.1316-1332, 17 p.
Publisher
University of Baghdad College of Science
Publication Date
2016-06-30
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Topics
Abstract EN
The work involves synthesis of new quinolin-2-one Schiff bases (XIII)a,b and (XIV)a,b, pyrazoles (XI)a,b and pyrazolines (XII)a,b derivatives containing isoxazoline or pyrimidine cycle starting with chalcones.
3-Aminoacetophenone was reacted with 4-bromobenzaldehyde or 4-N,N-dimethyl aminobenzaldehyde in basic medium to give chalcones (I)a,b by Claisen-Schemidt reaction.
These chalcons were reacted with hydroxylamine hydrochloride or with thiourea in basic medium to form isoxazolines (II)a,b or pyrimidine-2-thion (III)a,b ,respectively.Also the pyrimidine-2-thiones (III)a,b and isoxazolines (II)a,b reacted with 4-or 3-substituted benzaldehyde and coumarin to form Schiff bases (IV)a-f (V)a-f and quinoline derivatives (VII)a-d(VIII)a-d, respectively.
On the other hand, compounds (V)b,f were reacted with ethylchloroacetate in basic medium to give ester compounds (IX)a,b .The condensation of new esters (IX)a,b with hydrazine hydrate led to produce new acid hydrazides (X)a,b.The later compound refluxing with 4-substituted benzaldehyde in dry benzene to give Schiff bases (XIII)a,band (XIV)a,b while the reaction of acid hydrazides (X)a,b with acetyl acetone or ethyl aceto acetate led to formation of pyrazole (XI)a,b , pyrazoline (XII)a,b ,respectively.
The synthesized compounds were characterized by melting points, FTIR,C.H.N.analysis, Mass and 1H NMR spectroscopy(of someof them) Some of the synthesized compounds have been screened for their antibacterial activities using two types of bacteria; E.
Coli and Staph.
aureus.
All the examined compounds did not show any biological activity towards E.
Coli but compound (VII)a showed activity towards Staph.
aureus.
American Psychological Association (APA)
al-Jazrawi, Jumbad Hurmuz Tuma Musa& Husayn, Duha Faruq& Jamil, Nibras Muzaffar. 2016. Synthesis and characterization of some new quinoline-2-one, schiff bases, pyrazole and pyrazoline compounds derived from hydrazide containing isoxazoline or pyrimidine cycles. Iraqi Journal of Science،Vol. 57, no. 2C, pp.1316-1332.
https://search.emarefa.net/detail/BIM-699519
Modern Language Association (MLA)
Husayn, Duha Faruq…[et al.]. Synthesis and characterization of some new quinoline-2-one, schiff bases, pyrazole and pyrazoline compounds derived from hydrazide containing isoxazoline or pyrimidine cycles. Iraqi Journal of Science Vol. 57, no. 2C (2016), pp.1316-1332.
https://search.emarefa.net/detail/BIM-699519
American Medical Association (AMA)
al-Jazrawi, Jumbad Hurmuz Tuma Musa& Husayn, Duha Faruq& Jamil, Nibras Muzaffar. Synthesis and characterization of some new quinoline-2-one, schiff bases, pyrazole and pyrazoline compounds derived from hydrazide containing isoxazoline or pyrimidine cycles. Iraqi Journal of Science. 2016. Vol. 57, no. 2C, pp.1316-1332.
https://search.emarefa.net/detail/BIM-699519
Data Type
Journal Articles
Language
English
Notes
Text in English ; abstracts in English and Arabic.
Record ID
BIM-699519