Resveratrol is the subject of intense research as a natural antioxidant and cancer chemopreventive agent. There has been a great deal of interest and excitement in understanding its action mechanism and developing analogs with antioxidant and cancerchemoprevention activities superior to that of the parent compound in the past decade. This work delineates that elongation of the conjugated links is
Method of making 2,7-dimethyl-2,4,6-octatrienedial and derivatives
申请人:Loyola University of Chicago
公开号:US05107030A1
公开(公告)日:1992-04-21
The present invention is an improved method to prepare 2,7-dimethyl-2,4,6-octatrienedial and related derivative compounds. This method of making 2,7-dimethyl-2,4,6-octatrienedial and derivatives thereof includes reacting 2-butenyl-bisphosphonic acid tetraalkyl ester and at least two equivalents of protected pyruvic aldehyde derivative in a nonpolar organic solvent in the presence of an alkali metal hydroxide. Compounds prepared by this invention are useful intermediates in the preparation of carotenoids.
Synthesis, characterization and optical response of polyene-cored stilbenoid dendrimers
作者:Antonio R. Cano-Marín、Enrique Díez-Barra、Julián Rodríguez-López
DOI:10.1016/j.tet.2004.10.083
日期:2005.1
synthesis of first- and second-generation dendrimers bearing phenylenevinylene chromophores within the dendritic branches (stilbenoid dendrimers) and polyenes (3 and 5 double bonds) as cores is described. A preliminary study of the optical properties of the resulting compounds was conducted by UV/vis and fluorescence spectroscopy.