The Open Organic Chemistry Journal
2012, 6 : 21-26Published online 2012 June 22. DOI: 10.2174/1874095201206010021
Publisher ID: TOOCJ-6-21
Synthesis and Use of Imidazolium Bound Rose Bengal Derivatives for Singlet Oxygen Generation
Departamento de Quimica Organica Facultad de Quimica Edificio Ciencias, Experimentales Universi-dad de Vigo, 36200 Vigo Pontevedra, Spain.
ABSTRACT
We describe the preparation and use of two new imidazolium-bound Rose Bengal derivatives for singlet oxy-gen generation. Photolysis of oxygen-saturated solution of furan rings in the presence of the imidazolium-bound sensitiz-ers provides the corresponding butenolides. The sensitizers could be recovered after the oxidation reaction.