35824-85-2Relevant articles and documents
Synthesis of some novel annulated pyrido[2,3-d] pyrimidines via stereoselective intramolecular hetero Diels-Alder reactions of 1-oxa-1,3-butadienes
Deb, Mohit L.,Bhuyan, Pulak J.
experimental part, (2010/07/18)
Some novel annulated pyrido[2,3-d]pyrimidines 6 and 7 were synthesized stereoselectively by intramolecular hetero Diels-Alder reactions involving 1-oxa-1,3-butadienes.
The synthesis of pyrimidineisothiazolones. The effect of temperature on the addition of aryl amines to functionalized pyrimidines
Decicco,Nelson
, p. 8213 - 8216 (2007/10/02)
A new synthesis for the hither-to-unknown pyrimidine isothiazolones 1 and 2 is detailed. The low temperature selectivity of amine nucleophiles on 6-chloropyrimidine-5-acylbromides (12) for the acylbromide over the ring chloride provides a new procedure fo
Studies of Pyrimidine-2,4-diones: Synthesis of Novel Condensed Pyridopyrimidines via Intramolecular Cycloadditions
Prajapati, Dipak,Bhuyan, Pulakjyoti,Sandhu, Jagir Singh
, p. 607 - 610 (2007/10/02)
Suitably functionalised pyrimidine-2,4-diones (1) cyclised intramolecularly to yield the novel furoisoxazolopyridopyrimidines (5) and (9) in excellent yields.Remarkably, the pyrimidone nucleus was unaffected nor were there any side-reactions in this synthesis.