An efficient and diastereoselective synthetic procedure for highly functionalized tetrahydroacenaphtho[1,2-b]indolone derivatives was successfully developed by the three-component reaction of acenaphthequinone, enaminones, and barbituric acid in the presence of a catalytic amount of L-proline. This method has the advantages of convenient operation, excellent yields, mild reaction conditions, and environmental friendliness.
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| http://dx.doi.org/10.1007/s11030-014-9544-4 | DOI Listing |
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