|
Эта публикация цитируется в 2 научных статьях (всего в 2 статьях)
Deprotonation of 1,1'-methylenebis[4-tert-butyl-2-(diphenylphosphino)benzene] and its analogues: synthesis and crystal structure of {5-But-2-[4-But-2-(Ph2P)C6H3(Ph)CH]C6H3P(Ph)K(OEt2)}2
A. Fayoumia, D. M. Lyubova, A. V. Cherkasova, G. K. Fukina, A. A. Trifonovab
a G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhnii Novgorod, Russian Federation
b A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, Russian Federation
Аннотация:
Oxidation of 1,1'-methylenebis[4-tert-butyl-2-(diphenylphosphino)benzene] by H2O2 or S8 in toluene affords two new PCP-type pincer ligands. The methylene group deprotonation in the new ligands as well as in their precursor by n-BuLi or LiCH2SiMe3 failed, while the methylene group in the precursor 1,1'-methylenebis[4-tert-butyl-2-(diphenylphosphino)benzene] was readily metallated by Lochmann–Schlosser superbase to form the unstable potassium complex which in turn was readily transformed into new {5-But-2-[4-But-2-(Ph2P)C6H3(Ph)CH]C6H3P(Ph)K(OEt2)}2 complex due to phenyl group migration.
Ключевые слова:
pincer ligands, P-ligands, synthesis, diphenylmethanides, alkali metals.
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/mendc1514
|
|
Обратная связь: