Synthesis of unsaturated derivatives of 2,5-dimethyl-4-phenylpyridine and 3-methyl-2-azafluorene

A substituted butadiene - 1-phenyl-4-(5-methyl-4-phenyl-2-pyridyl)buta-1,3-diene with a trans, trans configuration - was obtained by condensation of 2,5-dimethyl-4-phenylpyridine with cinnamaldehyde. Two 3-methyl-9-cinnamylidene-2-azafluorene isomers are formed as a result of condensation of the same aldehyde with 3-methyl-2-azafluorene. Data from the PMR and IR spectra were used to prove the configuration of the compounds obtained. It was established that the condensation of 3-methyl-2-azafluorene with salicylaldehyde gives 3-methyl-9-(2-hydroxybenzylidene)-2-azafluorene, which has a zwitterionic structure, and 1,2-bis(3-methyl-2-aza-9-fluorenylidene)ethane. Ideas regarding the chemical mechanism of the formation of the latter are presented. The preparation of an unsaturated alcohol - 3-methyl-9-allyl-2-aza-9-fluorenol - is described. © 1978 Plenum Publishing Corporation.

Авторы
Редакторы
-
Издательство
Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau
Номер выпуска
1
Язык
Английский
Страницы
66-69
Статус
Опубликовано
Подразделение
-
Номер
-
Том
14
Год
1978
Организации
  • 1 Practice Lumumba International-Friendship University, Moscow, 117302, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1649/