Preparation and identification of some new pyrazolopyrin derivatives and their polymerizations study

Other Title(s)

تحضير و تشخيص بعض مشتقات البايرازولوبايرين الجديدة و بلمرتها

Joint Authors

al-Musawi, Zaynab Husayn Fadil
al-Isa, Mahmud Ashraf Jamal
al-Bayati, Rida Ibrahim

Source

Baghdad Science Journal

Issue

Vol. 11, Issue 2(s) (30 Jun. 2014), pp.378-386, 9 p.

Publisher

University of Baghdad College of Science for Women

Publication Date

2014-06-30

Country of Publication

Iraq

No. of Pages

9

Main Subjects

Chemistry

Topics

Abstract AR

هذا البحث يصف تحضير و تشخيص و بلمرة بعض المركبات الحلقية غير المتجانسة المدمجة و هي ؛ المركبات هذه مثل .

Pyrazolo [4,3- C] Pyridines و Pyrano ]4,3-4,3-C] Pyrazoles[ Pyrazoles تعين لتهجين حلقة البيرازول مع البيرون و / أو أصناف بيريدين، على التوالي.

التفاعلات الكيميائية المستخدمة في تحضير المركبات تصف جنبا إلى جنب السلوك الكيميائي، مناقشة و تشخيص تركيب المركبات المحضرة 1 بوساطة IR و 1-(3,6-dimethyl-4-oxo-1,4- البوليمرية السالسل.

الطيفية المعلومات H-NMR dihydro-5H-pyrazolo [4,3-c] pyridin-5-yl)-1H-pyrrole-2,5-Dione S1, 1-[2-(3,6- dimethyl-4-oxo-1-phenyl-1, 4-dihydro-5H-pyrazolo [4,3-C] pyridin-5-yl)ethyl]-1Hpyrrole-2,5-Dione S2 and 1-(3,6-dimethyl-4-oxo-1-phenyl-1,4- dihydro-5H- بطريقة تحضر (AA) الاكريليك و حامض pyrazolo[4,3-C]pyridin-5-yl)-1H-pyrrole2,5-DioneS3 البلمرة بالجذور الحرة في أيثانول المطلق في ˚70 C باستخدام بيروكسيد البنزويل بوصفه كبادئ.

نسب فعالية المونومرات تحدد بطريقة فاينمان- روس و كالين- تودس.

يقدر معدل طول الوحدات المتكررة للمونومر الواحد في سلسلة البوليمر المشترك من خلال قيم r1, r2 .

فإنه يدل على أن وحدة AA تزداد بطريقة خطية في سلسلة البوليمر و زيادة تركيز المونومر AA في مزيج التغذية.

Abstract EN

This work describes the synthesis and polymerization properties of some novel polysubstituted fused heterocyclic ring Systems namely; Pyrano [4, 3-C] Pyrazoles and pyrazolo [4, 3-C] Pyridines.

Such targeted compounds where designed so as to hybridize the Pyrazole ring with the pyrone and/or pyridine moieties, respectively.

The chemistry of the reactions employed in the synthesis of the target compounds together with their chemical behavior, are discussed and the structures of the newly synthesized compounds were confirmed by the IR and 1H-NMR spectral data.

A series of copolymers 1-(3,6-dimethyl-4-oxo-1,4-dihydro-5H-pyrazolo [4,3-C] pyridin-5-yl)-1H-pyrrole-2,5-Dione S1, 1-[2-(3,6-dimethyl-4-oxo-1-phenyl-1, 4-dihydro-5H-pyrazolo [4,3-C] pyridin-5-yl)ethyl]-1H-pyrrole-2,5-Dione S2 and 1-(3, 6-dimethyl-4-oxo-1-phenyl-1,4-dihydro-5H-pyrazolo[4,3-C]pyridin-5-yl)-1H-pyrrole 2,5-Dione S3 with Acrylic acid (AA) were prepared by free radical polymerization in absolute ethanol at 70C˚ using Benzoyl peroxide as initiator.

The reactivity ratios of the monomers were determined by Fineman- Ross and Kelen-Tudos methods.

Mean Sequence lengths of copolymers are estimated from r1 and r2 values.

It shows that the AA unit increases in a linear fashion in the polymer chain as the concentration of AA increases in the monomer feed

American Psychological Association (APA)

al-Bayati, Rida Ibrahim& al-Isa, Mahmud Ashraf Jamal& al-Musawi, Zaynab Husayn Fadil. 2014. Preparation and identification of some new pyrazolopyrin derivatives and their polymerizations study. Baghdad Science Journal،Vol. 11, no. 2(s), pp.378-386.
https://search.emarefa.net/detail/BIM-627749

Modern Language Association (MLA)

al-Bayati, Rida Ibrahim…[et al.]. Preparation and identification of some new pyrazolopyrin derivatives and their polymerizations study. Baghdad Science Journal Vol. 11, no. 2 (2014), pp.378-386.
https://search.emarefa.net/detail/BIM-627749

American Medical Association (AMA)

al-Bayati, Rida Ibrahim& al-Isa, Mahmud Ashraf Jamal& al-Musawi, Zaynab Husayn Fadil. Preparation and identification of some new pyrazolopyrin derivatives and their polymerizations study. Baghdad Science Journal. 2014. Vol. 11, no. 2(s), pp.378-386.
https://search.emarefa.net/detail/BIM-627749

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 385-386

Record ID

BIM-627749