Synthesis and NLO behavior of Oligo(phenylenevinylene)-Porphyrin Dendrimers
摘要:
Dendrons with a porphyrin core and pi-conjugated dendron branches with 8 and 16 stilbene groups have been synthesized and characterized. The dendrons used for dendrimer synthesis possessed an all trans configuration. Cubic non-linear optical behavior of the styryl and porphyrin-containing dendrimers was tested via Z-Scan measurements in spin-coated film samples. (C) 2012 Elsevier Ltd. All rights reserved.
The present invention relates to compounds of the general formula (I)
The compounds are useful in the treatment and/or prevention of conditions mediated by nuclear receptors, in particular the Peroxisome Proliferator-Activated Receptors (PPAR).
Synthesis and cubic nonlinear optical behavior of phenyl and ferrocenyl-ended resorcinarene-based dendrimers
作者:Irina Victorovna-Lijanova、Maria I. Reyes-Valderrama、José-Luis Maldonado、Gabriel Ramos-Ortiz、Klimova Tatiana、Marcos Martínez-García
DOI:10.1016/j.tet.2008.02.050
日期:2008.5
Dendrimers were synthesized with phenyl and ferrocenyl-ended groups joined by vinyl moieties. All the dendrons used for dendrimers synthesis had showed trans configuration. This configuration as well as the 'cone' conformation of the resorcinarenes was preserved in the dendrimers. as it was shown by H-1 NMR spectroscopy. The chemical structure and purity of the synthesized dendrimers were confirmed by 1H and C-13 NMR, FAB+, MALDI-TOF, electrospray mass spectra, and elemental analysis. Cubic nonlinear optical behavior of this first generation of resorcinarene dendrimers was studied. The chi((3)) values estimated from the THG Maker-fringe technique for the phenyl and ferrocenyl-ended resorcinarene dendrimers dispersed in thin solid films are of the order of 10(-13) and 10(-12) esu, respectively. (c) 2008 Elsevier Ltd. All rights reserved.
PROPIONIC ACID DERIVATIVES AND THEIR USE IN THE TREATMENT OF DIABETES AND OBESITY