Synthesis of new photochromic diarylethenes of cyclopentenone series by Nazarov reaction
作者:Valerii Z. Shirinian、Andrey G. Lvov、Anna M. Yanina、Vadim V. Kachala、Mikhail Krayushkin
DOI:10.1007/s10593-015-1690-9
日期:2015.3
[GRAPHICS]An effective method is proposed for the synthesis of photochromic diarylethenes of cyclopentenone series with SnCl4-catalyzed 4 pi-electron cyclization of divinyl ketones by Nazarov reaction as the key step. It was shown that the introduction of an aryl group at position 4 of the cyclopentenone ring significantly improved the quantum yield of diarylethene photocyclization reaction.