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Dimerization/Elimination of β-Styrylmalonates under Action of TiCl[sub.4]
A new type of dimerization of dimethyl (β-styryl)malonates in the presence of TiCl[sub.4] accompanied by elimination of a methanol molecule was discovered. Selective methods for the synthesis of substituted trimethyl 4-hydroxy-[1,1′-biaryl]-3,3,5(2H)-tricarboxylates and trimethyl 7-hydroxy-9,10-dihy...
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Published in: | Molecules (Basel, Switzerland) Switzerland), 2022-12, Vol.28 (1) |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | A new type of dimerization of dimethyl (β-styryl)malonates in the presence of TiCl[sub.4] accompanied by elimination of a methanol molecule was discovered. Selective methods for the synthesis of substituted trimethyl 4-hydroxy-[1,1′-biaryl]-3,3,5(2H)-tricarboxylates and trimethyl 7-hydroxy-9,10-dihydro-5,9-methanobenzo[8]annulene-6,8,8(5H)-tricarboxylates were developed. The regularities of the occurring processes were determined and a similar reaction of β-styrylmalonate with benzylidenemalonate in the presence of TiCl[sub.4] was performed in the scope of the suggested mechanism. |
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ISSN: | 1420-3049 1420-3049 |
DOI: | 10.3390/molecules28010270 |