期刊
TETRAHEDRON
卷 62, 期 24, 页码 5652-5655出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2006.03.095
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Microwave-assisted synthesis of calix[4]resorcinarenes by cyclocondensation of various aldehydes and resorcinol catalysed by 12-tungstophosphoric acid type Keggin (H3PW12O40 center dot 13H(2)O) or concentrated HCl is described. Excellent isolated yields (up to 90%) were attained within short reaction times (typically, 3-5 min) when the reaction was performed under microwaves irradiation. (c) 2006 Elsevier Ltd. All rights reserved.
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