Microwave-assisted synthesis of benzoxazole-7-carboxylate esters using trifluoroacetic acid and acetic acid

被引:10
作者
Huxley, Anthony [1 ]
机构
[1] GlaxoSmithKline Inc, GI Ctr Excellence Drug Discovery, Harlow CM19 5AW, Essex, England
关键词
benzoxazoles; heterocycles; cyclisations; acylations; microwave-assisted synthesis; trifluoroacetic acid;
D O I
10.1055/s-2006-951489
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Existing routes to benzoxazole-7-carboxylates are low-yielding. The following letter describes a new methodology for the synthesis of benzoxazole-7-carboxylates in much improved yield using trifluoroacetic acid-acetic acid and microwave irradiation.
引用
收藏
页码:2658 / 2660
页数:3
相关论文
共 5 条
[1]   A FACILE SYNTHESIS OF METHYL 2-SUBSTITUTED-4-BENZOXAZOLECARBOXYLATES [J].
GOLDSTEIN, SW ;
DAMBEK, PJ .
JOURNAL OF HETEROCYCLIC CHEMISTRY, 1990, 27 (02) :335-336
[2]  
KOSOKA T, 1995, HETEROCYCLES, V41, P477
[3]  
MEYER V, 1915, J PRAKT CHEM, V92, P265
[4]   Parallel synthesis of benzoxazoles via microwave-assisted dielectric heating [J].
Pottorf, RS ;
Chadha, NK ;
Katkevics, M ;
Ozola, V ;
Suna, E ;
Ghane, H ;
Regberg, T ;
Player, MR .
TETRAHEDRON LETTERS, 2003, 44 (01) :175-178
[5]   Benzoxazoles as transthyretin amyloid fibril inhibitors: Synthesis, evaluation, and mechanism of action [J].
Razavi, H ;
Palaninathan, SK ;
Powers, ET ;
Wiseman, RL ;
Purkey, HE ;
Mohamedmohaideen, NN ;
Deechongkit, S ;
Chiang, KP ;
Dendle, MTA ;
Sacchettini, JC ;
Kelly, JW .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (24) :2758-2761