✦ LIBER ✦

Purines, pyrimidines, and condensed systems based on these compounds. 12. 1,3-Dimethylpyrimido[4,5-d]pyrimidine-2, 4-(1H,3H)dione: The first case of regioselective amination of condensed pyrimidines in position 2

✍ Scribed by A. V. Gulevskaya; A. F. Pozharskii; S. V. Shorshnev; E. A. Zheltushkina

Publisher: Springer US
Year: 1994
Tongue: English
Weight: 343 KB
Volume: 30
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf01171170

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Purines, pyrimidines, and condensed syst

Purines, pyrimidines, and condensed systems based on them. 9. Concerning the synthesis of 1-r-pyrazolo[3,4-d]pyrimidine-4,6-diones

✍ L. P. Smirnova; A. F. Pozharskii; I. A. Ivanova; A. I. Chernyshev 📂 Article 📅 1992 🏛 Springer US 🌐 English ⚖ 477 KB

Regioselective Synthesis of 1H,3H,6H[2]B

Regioselective Synthesis of 1H,3H,6H[2]Benzopyrano[4,3-d]pyrimidine-2,4-diones and 12H-Benzopyrano[3,2-c][1]benzopyran-5-ones by Radical Cyclization.

✍ K. C. Majumdar; P. K. Basu; P. P. Mukhopadhyay; S. Sarkar; S. K. Ghosh; P. Biswa 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 147 KB 👁 1 views

ChemInform Abstract: Substituted 2-Amino

ChemInform Abstract: Substituted 2-Aminonicotinamides in the Synthesis of Pyrido[2,3-d]pyrimidin-4(1H)-ones, 2,3-Dihydropyrido[2,3-d]pyrimidin-4(1H)-ones, and 11b,12-Dihydropyrido[2′,3′:4,5]pyrimido[2,1-a]isoindole-5,7-diones.

✍ E. A. Sidorova; E. S. Kostenko; I. S. Arustamova; E. A. Kaigorodova; L. D. Konyu 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 52 KB 👁 2 views

Purines, Pyrimidines, and Condensed Syst

Purines, Pyrimidines, and Condensed Systems Based on Them. Part 18. Reaction of 6,8-Dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione N(2)-Oxide with Alkylamines.

✍ D. V. Besedin; A. V. Gulevskaya; A. F. Pozharskii 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 2 views

One-Pot Three-Component Condensation Rea

One-Pot Three-Component Condensation Reaction in Water: An Efficient and Improved Procedure for the Synthesis of Furo[2,3-d]pyrimidine-2,4(1H,3H)-diones.

✍ Ahmad Shaabani; Mohammad Bagher Teimouri; Hamid Reza Bijanzadeh 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 84 KB 👁 2 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

One-pot three component condensation rea

One-pot three component condensation reaction in water: an efficient and improved procedure for the synthesis of furo[2,3-d]pyrimidine-2,4(1H,3H)-diones

✍ Ahmad Shaabani; Mohammad Bagher Teimouri; Hamid Reza Bijanzadeh 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 159 KB

The environment-friendly three component condensation reactions of N,N%-dimethylbarbituric acid, 4-nitrobenzaldehyde and alkyl or aryl isocyanides to afford the corresponding furo[2,3-d]pyrimidine-2,4(1H,3H)-diones, in water, in high yields after several minutes are reported.