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Synthesis and reactivity of 1-amino-4-methyl-3,4-dihydro-5H-pyrazolo[3′,4′:4,5]pyrimido[1,6-a]benzoimidazolo-5-one

✍ Scribed by Abdou O. Abdelhamid; Ahmed A. Awad

Publisher
Journal of Heterocyclic Chemistry
Year
2007
Tongue
English
Weight
290 KB
Volume
44
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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Pyrimido[2“,1”:5′,6′]pyrazolo[3′,4′:4,5]‐pyrimido[1,6‐a]benzoimidazoloe‐2,8(1__H__,7__H__)‐diones, and [1,2,4]‐triazino‐[3“,4”:5′,6′]pyrazolo[3′,4′:4,5]pyrimido[1,6‐a]benzimidazol‐8(7__H__)‐ones were synthesized in a good yields via 1‐amino‐4‐methyl‐3,4‐dihydro‐5__H__‐pyrazolo[3′,4′:4,5]pyrimido[1,6‐a]benzoimidazolo‐5‐one and the appropriate active methylene compounds. Structures of the newly synthesized compounds were elucidated on the basis of elemental analyses, spectral data, and alternative synthesis methods whenever possible.

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