Mild and Regioselective Hydroxylation of Methyl Group in Neocuproine: Approach to an N,O-Ligated Cu6 Cage Phenylsilsesquioxane

The self-Assembly synthesis of Cu(II)-silsesquioxane involving 2,9-dimethyl-1,10-phenanthroline (neocuproine) as an additional N ligand at copper atoms was performed. The reaction revealed an unprecedented aerobic hydroxylation of only one of the two methyl groups in neocuproine to afford the corresponding geminal diol. The produced derivative of oxidized neocuproine acts as a two-centered N,O ligand in the assembly of the hexacopper cage product [Cu6(Ph5Si5O10)2·(C14H11N2O2)2] (1), coordinating two of the six copper centers in the product. Two siloxanolate ligands [PhSi(O)O]5 in the cis configuration coordinate to the rest of the copper(II) ions. Compound 1 is a highly efficient homogeneous precatalyst in the oxidation of alkanes and alcohols with peroxides. © 2018 American Chemical Society.

Авторы
Bilyachenko A.N. 1, 2 , Levitsky M.M.1 , Khrustalev V.N. 2 , Zubavichus Y.V.3 , Shul'Pina L.S.1 , Shubina E.S.1 , Shul'Pin G.B.4, 5
Журнал
Издательство
American Chemical Society
Номер выпуска
2
Язык
Английский
Страницы
168-171
Статус
Опубликовано
Том
37
Год
2018
Организации
  • 1 Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, Moscow, Russian Federation
  • 2 Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay Str., 6, Moscow, Russian Federation
  • 3 National Research Center kurchatov Institute, Akademika Kurchatova pl., 1, Moscow, Russian Federation
  • 4 Semenov Institute of Chemical Physics, Russian Academy of Sciences, ulitsa Kosygina, dom 4, Moscow, Russian Federation
  • 5 Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow, Russian Federation
Ключевые слова
Copper; Hydroxylation; Ligands; Self assembly; Cis configurations; Copper centers; N ,O ligands; Oxidation of alkanes; Phenylsilsesquioxane; Regio-selective; Self-assembly synthesis; Silsesquioxanes; Chelation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/6898/