## Abstract magnified image Pyrimido[4,5‐__d__]pyrimidine‐2,5‐dione derivatives have been synthesized in high yields in a novel, onepot, and efficient process by condensation of 6‐amino‐3‐methyl‐2‐(methylthio)pyrimidin‐4(3__H__)‐one, aldehydes and urea under microwave‐assisted conditions.
✦ LIBER ✦
Regiospecific One-Pot Synthesis of Pyrimido[4,5-d]pyrimidine Derivatives in the Solid State under Microwave Irradiations.
✍ Scribed by Dipak Prajapati; Mukut Gohain; Ashim J. Thakur
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 24 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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## Abstract magnified image Reaction of 6‐amino‐2‐methylthiouracil and 6‐amino‐1,3‐dimethyluracil with equimoler amounts of cyclic ketones or cyclic 1,3‐diketones and the appropriate aromatic aldehydes yielded regioselectivity a series of polycyclic pyrimido[4,5‐__b__]quinoline and pyrido[2,3‐__d_