Issue 21, 2011

3-Methoxalylchromones – versatile reagents for the regioselective synthesis of functionalized 2,4′-dihydroxybenzophenones, potential UV-filters

Abstract

The reaction of 1,3-bis-silyl enol ethers with 3-methoxalylchromones affords a great variety of functionalised 2,4′-dihydroxybenzophenones. These products are formed by a domino Michael/retro-Michael/Mukaiyama-aldol reaction. The synthesized compounds are promising candidates for the synthesis of the novel UV-A/B and UV-B filters.

Graphical abstract: 3-Methoxalylchromones – versatile reagents for the regioselective synthesis of functionalized 2,4′-dihydroxybenzophenones, potential UV-filters

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2011
Accepted
16 Aug 2011
First published
17 Aug 2011

Org. Biomol. Chem., 2011,9, 7554-7558

3-Methoxalylchromones – versatile reagents for the regioselective synthesis of functionalized 2,4′-dihydroxybenzophenones, potential UV-filters

V. O. Iaroshenko, A. Bunescu, A. Spannenberg, L. Supe, M. Milyutina and P. Langer, Org. Biomol. Chem., 2011, 9, 7554 DOI: 10.1039/C1OB05931A

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