✦ LIBER ✦

Dihydropyrimidines, part 5. Dynamic NMR investigation of the annular tautomerism in dihydropyrimidines

✍ Scribed by Weis, A. L.; Porat, Z.; Luz, Z.

Book ID: 126075535
Publisher: American Chemical Society
Year: 1984
Tongue: English
Weight: 459 KB
Volume: 106
Category: Article
ISSN: 0002-7863
DOI: 10.1021/ja00338a004

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The factors affecting possibility of obs

The factors affecting possibility of observation of annular tautomerism in dihydropyrimidine systems

✍ A.L. Weis 📂 Article 📅 1982 🏛 Elsevier Science 🌐 French ⚖ 219 KB

~wrnnary: me amount of water in the solvent, microconcentration of H+ ions in the solution, paramagnetic impurities, concentration dependence, have remarkable effects on the ability of observing tautomerism in dihydropyrimidines.

σ-Complexes in the Pyrimidine Series. Pa

σ-Complexes in the Pyrimidine Series. Part 14. Dihydropyrimidine Analogues of Acyclonucleosides. Synthesis of 2,3-Dihydroxypropyl Derivatives of 4-Aryl-6-methyl-5-nitro-1,4(3,4)-dihydropyrimidin-2-ones.

✍ S. A. Kravchenko; V. V. Pirozhenko; S. I. Vdovenko; A. E. Sorochinsky; G. Ya. Re 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 137 KB

Investigation the chemical reactivity of

Investigation the chemical reactivity of positions N-3, C-5 and C6-methyl group in biginelli type compounds and synthesis of new dihydropyrimidine derivatives

✍ Y. R. Mirzaei; H. Azamat; H. Namazi 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 45 KB 👁 1 views

## Abstract The compounds 5‐ethoxycarbonyl‐1,6‐dimethyl‐4‐(3‐nitrophenyl)‐3,4‐dihydropyrimidin‐2(l__H__)‐one (5) and 5‐ethoxycarbonyl‐1‐phenyl‐6‐methyl‐4‐(3‐nitrophenyl)‐3,4‐dihydropyrimidin‐2(l__H__)‐one (1) were prepared by the Biginelli condensation method and they converted to eight N‐3 substit

.sigma.-Adduct formation between azines

.sigma.-Adduct formation between azines and liquid ammonia. Part 49. Nitrogen-15 NMR investigations on the tautomeric structures of the covalent .sigma.-adducts formed between 5-nitropyrimidines and liquid ammonia

✍ Holterman, Herman A. J.; Van Veldhuizen, Albertus; Van der Plas, Henk C. 📂 Article 📅 1986 🏛 American Chemical Society 🌐 English ⚖ 386 KB

2 H NMR Investigation of the Structure a

2 H NMR Investigation of the Structure and Dynamics of the Nonionic Surfactant C 12 E 5 Confined in Controlled Pore Glass

✍ Qiao, Ying; Schönhoff, Monika; Findenegg, Gerhard H. 📂 Article 📅 2003 🏛 American Chemical Society 🌐 English ⚖ 215 KB

31P NMR investigation of the backbone co

31P NMR investigation of the backbone conformation and dynamics of the hexamer duplex d(5′-GCATGC)2 in its complex with the antibiotic nogalamycin

✍ Mark S. Searle; Andrew N. Lane 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 459 KB