✦ LIBER ✦

Acid-base characteristics of functionally 4-substituted 4-alkyl-7-aminocoumarins

✍ Scribed by M. A. KirpichËnok; L. A. Karandashova; I. I. Grandberg

Publisher: Springer US
Year: 1991
Tongue: English
Weight: 465 KB
Volume: 27
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00471744

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of 4-alkyl functionally substi

Synthesis of 4-alkyl functionally substituted 7-dialkylaminocoumarins

✍ S. K. Gorozhankin; M. A. KirpichËnok; I. I. Grandberg 📂 Article 📅 1990 🏛 Springer US 🌐 English ⚖ 414 KB

Studies with 1-functionally substituted

Studies with 1-functionally substituted alkyl azoles: Novel synthesis of functionally substituted azolylbenzimidazoles and functionally substituted azolyl-1,2,4-triazoles

✍ Mohamed Abdel-Megid; Mohamed H. Elnagdi; Abdalla M. Negm 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 47 KB

## Abstract ω‐Azolylacetophenones **1** and **2** react with dimethylformamide dimethylacetal to yield enaminones **7,8** that were converted into azolylazoles __via__ reaction with hydrazine and with hydroxylamine. Compounds **1,2** also coupled with aromatic diazonium salts to yield arylhydrazone

ChemInform Abstract: Studies with 1-Func

ChemInform Abstract: Studies with 1-Functionally Substituted Alkyl Azoles: Novel Synthesis of Functionally Substituted Azolylbenzimidazoles and Functionally Substituted Azolyl-1,2,4-triazoles.

✍ Mohamed Abdel-Megid; Mohamed H. Elnagdi; Abdalla M. Negm 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

Interaction of functionally-substituted

Interaction of functionally-substituted 4-alkyl-2,6-di-tert-butylphenols with hydrohalic acids

✍ A. E. Prosenko; A. A. Skorobogatov; O. I. Dyubchenko; P. I. Pinko; N. V. Kandali 📂 Article 📅 2007 🏛 Springer 🌐 English ⚖ 381 KB

Microwave acceleration of the Pechmann r

Microwave acceleration of the Pechmann reaction on graphite/montmorillonite K10: application to the preparation of 4-substituted 7-aminocoumarins

✍ Stéphane Frère; Valérie Thiéry; Thierry Besson 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 70 KB

Spectral-luminescence and acid-base prop

Spectral-luminescence and acid-base properties of 4,7-diaminocoumarins

✍ L. A. Karandashova; M. A. KirpichËnok; D. S. Yufit; Yu. T. Struchkov; I. I. Gran 📂 Article 📅 1990 🏛 Springer US 🌐 English ⚖ 581 KB

The absorption and luminescence spectra of a series of 4,7-diaminocoumarins have been investigated in ethanol and acetonitrile solution. The pkJ and pkJ 1 values for several of the compounds have been measured. It has been found that the site of primary protonation is the nitrogen atom in the 7-posi