Title of article
Facile Entries for Regioselective Synthesis of [1,2,4]Triazolo-[4,3-a]pyrimidin-5(1H)-ones from 2-Thiouracil
Author/Authors
A.S. Shawalia، نويسنده , , I.M. Abbasa and A.M. Mahranb، نويسنده ,
Issue Information
فصلنامه با شماره پیاپی سال 2004
Pages
7
From page
33
To page
39
Abstract
Three new alternative synthetic strategies based on reactions of hydrazonoyl halides 3 with 2-methylthiouracil 2 and treatment of either 2-pyrimidinyl thiohydrazonates 8 or the diazonium coupling products of active (pyrimidin-2- ylthio)methylene compounds 12 with sodium ethoxide in ethanol are described for the title compounds. The mechanisms and regiochemistry of the studied reactions are discussed
Keywords
synthetic methods , Rearrangement , hydrazones , 2 , Heterocycles , 4-Triazolo-pyrimidine , 1
Journal title
Journal of the Iranian Chemical Society (JICS)
Serial Year
2004
Journal title
Journal of the Iranian Chemical Society (JICS)
Record number
666428
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