期刊
TETRAHEDRON
卷 63, 期 33, 页码 8010-8016出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.05.063
关键词
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TiO2-silica is used as an efficient solid-supported catalyst for the synthesis of a series of novel dispiroheterocyclic systems by the cycloaddition of an azomethine ylide generated by the decarboxylative route from tetrahydroisoquinoline-3-carboxylic acid and acenaphthenequinone/ isatin with various unusual dipolarophiles such as 2-arylidene-1,3-indanediones and (E)-2-oxoindolino-3-ylidene acetophenones in a one pot three component tandem reaction, in moderate to good yields. The regiochemistry and stereochemistry of the title compound were established by spectroscopic techniques. (C) 2007 Elsevier Ltd. All rights reserved.
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