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Document Details
Document Type
:
Article In Journal
Document Title
:
syntheses of dipyrazole ketones the regioselectivity of the cycloadducts products and simple method for syntheses of pyrazolopyrazoline derivatives
سينثيسيز كيتون ديبيرازول ريجيوسيليكتيفيتي منتجات السايكلوادكتس و الطّريقة البسيطة لسينثيسيز مشتقّات بيرازولوبيرازولاين
Subject
:
syntheses of dipyrazole ketones the regioselectivity of the cycloadducts products and simple method for syntheses of pyrazolopyrazoline derivatives
Document Language
:
English
Abstract
:
The cycloaddition of C-ethoxycarbonyl-N–arylnitrilimine 6 with ,ß–unsaturated ketone5 gave predominantly the dipyrazolyl ketones 8 Cyclocondensation of 8 with hydrazine hydrate afforded the pyridazinone derivates 9 and 10. Treatment of 5 with hydrazine derivatives gave the pyrazolopyrazolines 11. Reactions 11 (R=H) with isothiocyanate derivaties leads to N-substituted thioureas 12 and 13. The structures of the cycloadducts 8, pyridazinone derivatives 9 and 10, pyrazolopyrazoline derivatives 11 and N-substituted thioureas 12 and 13 were supported by MS, NMR and IR Spectroscopic Methods.
ISSN
:
1319-6103
Journal Name
:
Journal of Saudi Chemical Society
Volume
:
5
Issue Number
:
3
Publishing Year
:
1421 AH
2001 AD
Article Type
:
Article
Added Date
:
Sunday, February 27, 2011
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عبد الله عسيري
Asiri, abdullah
Researcher
Doctorate
Files
File Name
Type
Description
29149.pdf
pdf
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