The Fast Photochemical[2+2]Cycloaddition and Reverse Reaction of a Styrylpyrazine Amphiphile in Aqueous Dispersion
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Photochemical [2+2] cycloaddition of styrylpyrazine amphiphile <B>1</B> in aqueous dispersion occurred quantitatively and much faster than that of stilbene analogue <B>2</B>. Amphiphile <B>1</B> showed intermolecular photoreversible reactivity, [2+2] cycloaddition and the reverse reaction, in aqueous dispersion with alternate irradiation at above 300 and at 254 nm as the first example for 1,2-diarylethylene in aqueous dispersion.
- Chemistry Letters
Chemistry Letters 1999(12), 1309-1310, 1999-12-05
The Chemical Society of Japan