One-pot synthesis of Lewis acidic ionic liquids for Friedel-Crafts alkylation

被引：0

作者：

He, L ^{[1
]}

Tao, GH ^{[1
]}

Liu, WS ^{[1
]}

Xiong, W ^{[1
]}

Wang, T ^{[1
]}

Kou, Y ^{[1
]}

机构：

[1] Peking Univ, Green Chem Ctr, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2006年 / 17卷 / 03期

关键词：

ionic liquids; green chemistry; one-pot synthesis; Lewis acidity; alkylation;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel Lewis acidic ionic liquids containing thionyl cations and chloroaluminate anions were obtained by one-pot synthesis for the first time. Their acidities were determined by acetonitrile probe on IR spectrography. The ionic liquids were used as catalyst for Friedel-Crafts alkylation of benzene and 1-dodecene. The turnovers of 1-dodecene were higher than 99%. Monoalkylbenzene selectivity was 98%, while the 2-substituent product selectivity was 45%.

引用

页码：321 / 324

页数：4

共 9 条

[1]

Anastas P. T., 1998, GREEN CHEM THEORY PR

[2] Immobilised ionic liquids as Lewis acid catalysts for the alkylation of aromatic compounds with dodecene [J].

DeCastro, C ;

Sauvage, E ;

Valkenberg, MH ;

Hölderich, WF .

JOURNAL OF CATALYSIS, 2000, 196 (01) :86-94

[3] Alkylation of diphenyl oxide with at-dodecene catalyzed by ionic liquids [J].

Piao, L ;

Fu, X ;

Yang, Y ;

Tao, GH ;

Kou, Y .

CATALYSIS TODAY, 2004, 93-5 :301-305

[4] New generation ionic liquids: cations derived from amino acids [J].

Tao, GH ;

He, L ;

Sun, N ;

Kou, Y .

CHEMICAL COMMUNICATIONS, 2005, (28) :3562-3564

[5]

WANG XH, 2004, ACTA PHYS-CHIM SIN, P44

[6]

Wasserscheid P., 2003, Ionic Liquids in synthesis

[7]

West A, 2005, CHEM WORLD-UK, V2, P32

[8] Determination of the Lewis acidity of ionic liquids by means of an IR spectroscopic probe [J].

Yang, YL ;

Kou, Y .

CHEMICAL COMMUNICATIONS, 2004, (02) :226-227

[9] Ionic liquids: applications in catalysis [J].

Zhao, DB ;

Wu, M ;

Kou, Y ;

Min, E .

CATALYSIS TODAY, 2002, 74 (1-2) :157-189

← 1 →