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Novel and facile catalytic synthesis of 2,4-dioxopyrido[2,3-d]pyrimidine derivatives in water

✍ Scribed by Rosas, Noé; Sharma, Pankaj; Alvarez, Cecilio; Cabrera, Armando; Ramírez, Rodrigo; Delgado, Alejandro; Arzoumanian, Henri


Book ID
120281514
Publisher
Royal Society of Chemistry
Year
2001
Weight
101 KB
Volume
19
Category
Article
ISSN
1472-7781

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Synthesis and structural study of novel
✍ Rená Rodríguez; Margarita Suárez; Estael Ochoa; Beatriz Pita; Remberto Espinosa; 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 380 KB 👁 1 views

## Abstract The tide compounds 4a‐c have been prepared in a one‐step procedure from 2,4‐diamino‐6‐hydroxy‐pyrimidine (1) and the corresponding arylidene substituted Meldrum's acids 2a‐e in very good yields. Semiempirical theoretical calculations (AMI) reveal two favoured conformations (A and B) for