期刊
GREEN CHEMISTRY LETTERS AND REVIEWS
卷 4, 期 2, 页码 185-193出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17518253.2010.528049
关键词
1,3,5-trisubstituted benzenes; enaminone; 2-aminoprop-1-ene-1,1,3-tricarbonitrile; 1,3,5-aroylbenzene dicarboxylate; montmorillonite-K-10
资金
- Kuwait University Research Administration [SC10/06]
- SAF [GS01/01, GS01/03, GS01/05]
A variety of 1,3,5-trisubstituted benzenes could be obtained upon heating enaminones in absence of solvent over montmorillonite-K-10. Heating mixtures of two different enaminones 2a-d have also afforded 1,3,5-trisubstituted benzenes 7b-d and 8b-d resulting from self-condensation of one enaminone with two molecules of the other enaminone. Heating enaminone 2b with ethyl propiolate afforded a mixture of triaroylbenzene 3b in addition to diaroylbenzoic acid esters 11 and 1,3,5-aroylbenzene dicarboxylate 12. On the other hand, reaction of enaminone derivative 2b with dimethyl acetylenedicarboxylate has afforded 2-oxopyran-4-carboxylic acid derivative 15. 2-Aminoprop-1-ene-1,1,3-tricarbonitrile 16 was reacted with enaminones to yield polysubstituted benzenes 19a-c. Likewise the reaction of 2-aminoprop-1-ene-1,1,3-tricarbonitrile 16 with benzylidenemalononitrile has afforded polysubstituted benzenes 24. [GRAPHICS] .
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