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Research Article Open access CC BY 3.0

A Facile Synthesis of 7-amino-1,3-diaryl-5-phenyl-2-thioxo-pyrano[2,3-d]pyrimidine-4(5H)-ones

Nimalini Moirangthem, Warjeet S. Laitonjam

Chemical Science International Journal · pp. 58–70 · Published 4 Jul 2011

10.9734/ACSJ/2011/345

Abstract

The reactions of arylidene derivatives such as ethylphenylmethylenemalononitrile 3a, ethylphenylmethylenecyanoacetate 3b and ethylphenylmethylenecyano-acetamide 3c with substituted thiobarbituric acids 2a-e in presence of NaOCH3 and MeOH afforded 7-amino-1,3-diaryl-5-phenyl-2-thioxo-pyrano[2,3-d]pyrimidin-4(5H)ones 4a-e and 5e by cyclocondensation.

Synthesis pyranopyrimidines thiobarbituric acids arylidenes

Cited by 6

Ultrasound-assisted rapid synthesis of 2-aminopyrimidine and barbituric acid derivatives

Duygu Bayramoğlu, Gülbin Kurtay, M. Güllü · Synthetic Communications · 2020

HPLC purification technique: synthesis of unsymmetrical thiobarbituric acids

V. D. Deotale, Manish M. Katiya, M. G. Dhonde · Heliyon · 2019

Recent Developments in the Synthesis of Bicyclic Condensed Pyrimidinones

Rayees Ahmad Naikoo, Rupesh Kumar, Vipan Kumar · Current Organic Chemistry · 2022

Construction of Biologically Active Five- and Six-Membered Fused Ring Pyrimidine Derivatives from 1,3-Diarylthiobarbituric Acids (DTBA)

Warjeet S. Laitonjam, Nimalini Moirangthem · Strategies for the Synthesis of Heterocycles and Their Applications · 2023

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