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Synthesis of Fused Tetrazolo[1,5-c]pyrrolo[3,2-e]pyrimidines (VI) and Their Reductive Conversion to New 4-Aminopyrrolo[2,3-d]pyrimidines (VII).

โœ Scribed by Nirmal D. Desai


Publisher
John Wiley and Sons
Year
2006
Weight
24 KB
Volume
37
Category
Article
ISSN
0931-7597

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Synthesis of 7H-tetrazolo[1,5-c]pyrrolo[
โœ Chaitanya G. Dave; Rina D. Shah ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 336 KB

## Abstract Some new 7,9โ€disubstituted 7__H__โ€1,2,3,4โ€tetrazolo[1,5โ€__c__]pyrrolo[3,2โ€__e__]pyrimidines 5 have been synthesized either by diazotization of 4โ€hydrazinoโ€5,7โ€disubstitutedโ€7__H__โ€pyrrolo[2,3โ€__d__]pyrimidines 4 obtained by hydrazinolysis of 4โ€chloroโ€5,7โ€disubstitutedโ€7__H__โ€pyrrolo[2,3

Pyrrolo[3,4-e][1,2,3]triazolo[1,5-a]pyri
โœ Antonino Lauria; Patrizia Diana; Paola Barraja; Anna Maria Almerico; Girolamo Ci ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 301 KB ๐Ÿ‘ 1 views

## Abstract Derivatives of the new ring system pyrrolo[3,4โ€__e__][1,2,3] triazolo[1,5โ€__a__]pyrimidine **6** were prepared in high yields in one step by reaction of 3โ€azidopyrrole **3** and substituted acetonitriles. Compound **6b** rearranged, upon heating in dimethyl sulfoxide in the presence of