A new approach to the preparation of lanthanide catalysts for the synthesis of 2-propyl-3-ethylquinoline based on the reactions of LnCl3 • 6H2O crystalline hydrates with triisobutylaluminum

被引：7
|
作者：
Bulgakov, R. G. [1 ]
Kuleshov, S. P.
Makhmutov, A. R.
Vafin, R. R.
Karamzina, D. S.
Golikova, M. T.
Shestopal, Ya. V.
Usmanov, S. M.
Dzhemilev, U. M.
机构：
[1] Russian Acad Sci, Inst Petrochem & Catalysis, Acad Sci Bashkortostan, Ufa Sci Ctr, Ufa 450075, Bashkortostan, Russia
[2] Birsk State Pedag Inst, Birsk 452320, Bashkortostan, Russia
来源：
KINETICS AND CATALYSIS | 2006年 / 47卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0023158406040136
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new approach to the preparation of lanthanide catalysts for the synthesis of nitrogen heterocycles (exemplified by 2-propyl-3-ethylquinoline) was developed based on the reactions of LnCl(3) center dot 6H(2)O crystalline hydrates with alkylaluminums. It was found that the interaction of LnCl(3) center dot 6H(2)O (Ln = Ce, Pr, Tb, and Eu) with iso-Bu3Al in aromatic solvents (20 degrees C) resulted in the formation of soluble (isobutane and the alumoxane (iso-Bu2Al)(2)O) and insoluble products (with the empirical formula LnCl(3) center dot xH(2)O center dot y(iso-Bu2Al)(2)O (x = 0.4-0.7; y = 0.04-0.07)). The physicochemical properties of LnCl(3) center dot xH(2)O center dot y(iso-Bu2Al)(2)O were studied, and these compounds were found to be highly efficient catalysts for the reaction of aniline condensation with butyraldehyde to form 2-propyl-3-ethylquinoline.
引用
收藏
页码：572 / 579
页数：8
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