A synthetic method for tricyanovinylation under ultrasound irradiation has been developed for preparation of tricyanovinyl aromaticamines. The method is reliable and can be applied to the synthesis of a variety of tricyanovinyl compounds, with high yields, purity and with short reaction times.
Eco-friendly and recyclable media for rapid synthesis of tricyanovinylated aromatics using biocatalyst and deep eutectic solvent
作者:Anita Kailas Sanap、Ganapati Subray Shankarling
DOI:10.1016/j.catcom.2014.01.031
日期:2014.4
An efficient and clean synthesis of aromatic tricyanovinyl compounds from nucleophilic reagent and tetracyanoethylene has been achieved using biocatalyst and deep eutectic solvent (DES). Reaction using biocatalyst and DES requires lesser reaction time than conventional method. The advantages of the present method are ambient reaction temperature, easy isolation of the product, higher yield, recyclability
A new series of aromatic cyanovinyl compounds were synthesized via one-pot reactions of tri- or tetracyanoethylenes with nucleophilic reagents. The ground-state geometries and UV–vis absorptionspectra of the compounds were computationally analyzed by means of density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations, respectively. None of the compounds were
Thin films of 4-tricyanovinyl-N,N-diethylaniline (TCVA) were prepared for the first time using thermal evaporation technique. The molecular structure and electronic transitions of TCVA films were investigated by Fourier-transform infrared (FTIR) and ultraviolet-visible (UV-vis) spectra. The observed vibrational wavenumbers in FTIR spectra were analysed and assigned to different normal modes of the
Non-linear optically active molecules, their synthesis, and use
申请人:McGinniss D. Vincent
公开号:US20080004415A1
公开(公告)日:2008-01-03
In one aspect, the present invention provides a hyperpolarizable organic chromophore. The chromophore is a nonlinear optically active compound that includes a π-donor conjugated to a π-acceptor through a π-electron conjugated bridge. In other aspects of the invention, donor structures and acceptor structures are provided. In another aspect of the invention, a chromophore-containing polymer is provided. In one embodiment, the chromophore is physically incorporated into the polymer to provide a composite. In another embodiment, the chromophore is covalently bonded to the polymer, either as a side chain polymer or through crosslinking into the polymer. In other aspects, the present invention also provides a method for making the chromophore, a method for making the chromophore-containing polymer, and methods for using the chromophore and chromophore-containing polymer.