Pyrimidine and fused pyrimidine derivatives. III. Synthesis of s-triazolo(1,5-a)pyrimidine derivatives by using ketene dithioacetals.
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چکیده
منابع مشابه
A Facile Microwave-Assisted Synthesis of Some Fused Pyrimidine Derivatives
The highly accelerated synthesis of thienopyrimidinones, theinopyrimidines, thioxotheinopyrimidinones and a thienotriazolopyrimidinone derivatives under microwave irradiation is reported. Compared to conventional conditions, microwaves method offered several advantage likes short time, good yields, simple procedure, mild conditions and easy workup. The structure of synthesized compounds have be...
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In this study, a series of syntheses was conducted on the pyrimidine system, obtaining bisulfite carboxyl derivatives 4 and hydroxy derivatives 5. In addition, a series of syntheses were carried out as a result of which both alkyl and aromatic amines were obtained. Then, the attempt was made to cyclize these amines in the Mannich reaction to pyrimido[4,5-d]pyrimidines 11, 12. After determinatio...
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In this study, a series of syntheses was conducted on the pyrimidine system, obtaining bisulfite carboxyl derivatives 4 and hydroxy derivatives 5. In addition, a series of syntheses were carried out as a result of which both alkyl and aromatic amines were obtained. Then, the attempt was made to cyclize these amines in the Mannich reaction to pyrimido[4,5-d]pyrimidines 11, 12. After determinatio...
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Abstarct: A series of some new pyrimidine derivatives were synthesized via the reaction of ethyl cyanoacetate with thiourea and the appropriate aldehydes namely 2-methyl-benzaldehyde and 2-methoxy-benzaldehyde to give 1a,b. Compounds 1a,b were chlorinated to give the chloro compounds 2a,b then condensation of 2a,b via different reagents gave compounds 3-5. Compound 4b reacted with acetic anhydr...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1985
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.33.962