Direct condensation of carboxylic acids with polyethylene glycols catalyzed by Sc(OTf)3

被引：9

作者：

Chandrasekkar, S ^{[1
]}

Sultana, SS

Narsihmulu, C

Yadav, JS

Gree, R

Guillemin, JC

机构：

[1] Indian Inst Chem Technol, Hyderabad 500007, Andhra Pradesh, India

[2] Ecole Natl Super Chim Rennes, Lab Synth & Activat Biomol, CNR UMR 6052, F-35700 Rennes, France

来源：

TETRAHEDRON LETTERS | 2002年 / 43卷 / 46期

关键词：

D O I：

10.1016/S0040-4039(02)02008-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 [有机化学]; 081704 [应用化学];

摘要：

Esterification of soluble polymers by direct condensation of equimolar amounts of carboxylic acids with polyethylene glycols is achieved using catalytic Sc(OTf)(3) in toluene for the first time. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：8335 / 8337

页数：3

共 33 条

[1]

[Anonymous], ANGEW CHEM INT EDIT, DOI DOI 10.1002/ANIE.199622881

[2]

ANTHERTON E, 1989, SOLID PHASE PEPTIDE

[3]

BEAZ I, 1991, COMPREHENSIVE ORGANI, V6, P323

[4]

BLOSSEY EC, 1973, TETRAHEDRON LETT, V14, P1823

[5]

NIOBIC ACID AS AN EFFICIENT CATALYST FOR VAPOR-PHASE ESTERIFICATION OF ETHYL-ALCOHOL WITH ACETIC-ACID [J].

CHEN, Z ;

IIZUKA, T ;

TANABE, K .

CHEMISTRY LETTERS, 1984, (07) :1085-1088

[6]

Erickson B. W., 1976, PROTEINS, VII, P255

[7]

Carboxylic acids and esters [J].

Franklin, AS .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1999, (24) :3537-3554

[8]

Carboxylic acids and esters [J].

Franklin, AS .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1998, (15) :2451-2465

[9]

GAIT JM, 1989, SOLID PHASE OLIGONUC

[10]

RECENT DEVELOPMENTS IN METHODS FOR THE ESTERIFICATION AND PROTECTION OF THE CARBOXYL GROUP [J].

HASLAM, E .

TETRAHEDRON, 1980, 36 (17) :2409-2433

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