Title : ( Synthesis of novel heterocycle systems: 6,8-dimethyl-2-(methylsulfanyl-4-amino-substituted pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine and 9,11-dimethyl-5-(methylsulfanyl)pyrimido[2′,1′:5,1]pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine )
Authors: Maede Hasanpour Mansour , Hossein Eshghi , Mehdi Bakavoli , mozhde yusefi ,
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Abstract
The novel heterocyclic pyrimidopyrazolopyrimidine system was synthesised through cyclisation of 4‑hydrazinyl-2,6-bis(methylthio)pyrimidine-5-carbonitrile with acetylacetone in high yield. Also, two other tetracyclic systems were synthesised through cyclisation of 4‑hydrazinyl-6,8-dimethyl-2-(methylsulfanyl)pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine with triethyl orthoformate and sodium nitrite to obtain the pyrimidopyrazolotriazolo pyrimidine and pyrimidopyrazolotetrazolopyrimidine respectively.
Keywords
, pyrazolopyrimidine, triazolopyrimidine, 6, 8-dimethyl-2-(methylsulfanyl)-4-amino substituted pyrimido[4′, 5′:3, 4]pyrazolo[1, 5-a]pyrimidine, tetrazolopyrimidine, heterocyclic compounds, tetracyclic, cyclisation, acetylacetone
@article{paperid:1043816,
author = {Hasanpour Mansour, Maede and Eshghi, Hossein and Bakavoli, Mehdi and Yusefi, Mozhde},
title = {Synthesis of novel heterocycle systems: 6,8-dimethyl-2-(methylsulfanyl-4-amino-substituted pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine and 9,11-dimethyl-5-(methylsulfanyl)pyrimido[2′,1′:5,1]pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine},
journal = {Journal of Chemical Research},
year = {2014},
volume = {38},
number = {11},
month = {November},
issn = {1747-5198},
pages = {643--647},
numpages = {4},
keywords = {pyrazolopyrimidine; triazolopyrimidine; 6;8-dimethyl-2-(methylsulfanyl)-4-amino substituted pyrimido[4′;5′:3;4]pyrazolo[1;5-a]pyrimidine; tetrazolopyrimidine; heterocyclic compounds; tetracyclic; cyclisation; acetylacetone},
}
%0 Journal Article
%T Synthesis of novel heterocycle systems: 6,8-dimethyl-2-(methylsulfanyl-4-amino-substituted pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine and 9,11-dimethyl-5-(methylsulfanyl)pyrimido[2′,1′:5,1]pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine
%A Hasanpour Mansour, Maede
%A Eshghi, Hossein
%A Bakavoli, Mehdi
%A Yusefi, Mozhde
%J Journal of Chemical Research
%@ 1747-5198
%D 2014
