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Reaction of N1,N2-diarylacetamidines with (2,4,7-trinitro-9H-fluoren-9-ylidene)propanedinitriles

✍ Scribed by Mohsen Abdel-Motaal Gomaa; Dietrich Döpp

Publisher
Journal of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
186 KB
Volume
35
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Novel spiro[fluorene‐9,4′‐(1′,2′,3′,4′‐tetrahydropyridine)]‐5′‐carbonitriles 6a‐c have been obtained from the reaction of N^1^,N^2^‐diarylacetamidines 1a‐c with (2,4,7‐trinitro‐9__H__‐fluoren‐9‐ylidene)propanedinitrile (2) in ethyl acetate solutions at ambient temperature for 6a,b or under reflux for 6c, respectively.

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Reaction of 4-substituted thiosemicarbaz
Reaction of 4-substituted thiosemicarbazides with (2,4,7-trinitro-9H-fluoren-9-ylidene)propanedinitrile
✍ Alaa A. Hassan; Yusria R. Ibrahim; Ahmed M. Shawky; Dietrich Döpp 📂 Article 📅 2006 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 128 KB

## Abstract magnified image 4‐Substituted thiosemicarbazides **4a‐c** reacted with (2,4,7‐trinitro‐9__H__‐fluoren‐9‐ylidene)‐propanedinitrile (**2**) in pyridine with admission of air to form spiro[fluorene‐9,3′‐(1,2,4‐triazole)]derivatives **5a‐c** and (4‐substituted thiosemicarbazono)propanedini