Fully selective intramolecular ortho photocycloaddition of 4-(4-methoxy-phenoxy)-3-(N3-benzoylthymin-1-yl)but-1- ene: an unprecedented benzene–thymine photocycloaddition
作者:Wim Saeyens、Roger Busson、Johan Van der Eycken、Piet Herdewijn、Denis De Keukeleire
DOI:10.1039/a700554g
日期:——
On irradiation of
4-(4-methoxyphenoxy)-3-(N
3
-benzoylthymin-1-yl)but-1-e
ne 1 at 254 nm in THF a single photoadduct 2 is formed as a result of
chemo-, regio- and stereo-selective intramolecular ortho
photocycloaddition of the thymine double bond to the 1,2-positions of the
phenyl ring.