Solid state photodimerization of psoralen derivatives
Stereo selective reversible photodimerization of 8-alkoxypsoralen 1-thymine derivatives occurs in the solid state with topochemical control, the reactive pyrone double bonds of the monomers being favourably oriented in the crystal to produce only the exo head-to-tail dimer.
Courseille, Christian,Hospital, Michel,Decout, Jean-Luc,Lhomme, Jean