Synthesis and molecular structure of 7H-12-oxa-3,7-diazapleiadene-substituted 1,3-tropolones

Autor: Vladimir I. Minkin, I. O. Bondareva, V. N. Komissarov, S. M. Aldoshin, Zyong Ngia Bang, Yu. A. Sayapin, Gennady V. Shilov, Valery V. Tkachev, I. V. Dorogan
Rok vydání: 2011
Předmět:
Zdroj: Russian Chemical Bulletin. 60:1372-1379
ISSN: 1573-9171
1066-5285
Popis: An acid-catalyzed reaction of substituted 2-methyl-7H-12-oxa-3,7-diazapleiadenes with 1,2-benzoquinones leads to 7H-12-oxa-3,7-diazapleiadene-substituted 1,3-tropolones. Molecular structure of 5,7-di(tert-butyl)-2-[9,11-di(tert-butyl)-4-methyl-7H-12-oxa-3,7-diazapleiaden-2-yl]-4-nitro-1,3-tropolone was established by X-ray crystallography. Energy and structural characteristics of isomeric 5,7-di(tert-butyl)-2-[9,11-di(tert-butyl)-4-methyl-7H-12-oxa-3,7-diazapleiaden-2-yl]-4-nitro-1,3-tropolones in the gaseous phase and a polar solution were studied by the PBE0/6-31G** method.
Databáze: OpenAIRE