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 TypeDr GradeEmail
عبد الله عسيريAsiri, abdullah ResearcherDoctorate 

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