743-93-1Relevant articles and documents
An uncommon use of irradiated flavins: Br?nsted acid catalysis
Arakawa, Yukihiro,Mihara, Tomohiro,Fujii, Hiroki,Minagawa, Keiji,Imada, Yasushi
supporting information, p. 5661 - 5664 (2020/06/09)
We present that thioacetalization of aldehydes can be induced by blue light irradiation in the presence of a catalytic amount of riboflavin tetraacetate (RFTA) under aerobic conditions. Several control experiments have suggested that the reaction is more
Polymer fibers as carriers for homogeneous catalysts
Stasiak, Michael,Studer, Armido,Greiner, Andreas,Wendorff, Joachim H.
, p. 6150 - 6156 (2008/02/13)
This paper describes a polymer fiber-based approach for the immobilization of homogeneous catalysts. The goal is to generate products that are free of catalysts which would be of great importance for the development of optoelectronic or pharmaceutical compounds. Electrospinning was employed to prepare the non-woven fiber assembly composed of polystyrene. The homogeneous catalyst scandium triflate was immobilized on the polystyrene fibers during electrospinning and on corresponding core shell fibers using a fiber template approach. An imino aldol and an aza-Diels-Alder model reaction were carried out with each fibrous catalytic system. This resulted in the immobilization of homogeneous catalysts in a polymer environment without loss of their catalytic activity and may even be enhanced when compared with reactions carried out in homogeneous solutions.
Increased lewis acidity in hafnium-substituted polyoxotungstates
Boglio, Cecile,Micoine, Kevin,Remy, Pauline,Hasenknopf, Bernold,Thorimbert, Serge,Lacote, Emmanuel,Malacria, Max,Afonso, Carlos,Tabet, Jean-Claude
, p. 5426 - 5432 (2008/02/09)
Monolacunary polyoxotungs-tates [α1-P2W 17O61]10 and [α-PW11O 39]10 react with HfGl4 to yield [α1-HfP2W17O61]su