73172-23-3Relevant articles and documents
Reaction of Push-Pull Enaminoketones and in Situ Generated ortho-Quinone Methides: Synthesis of 3-Acyl-4H-chromenes and 2-Acyl-1H-benzo[f]chromenes as Precursors for Hydroxybenzylated Heterocycles
Lukashenko, Anton V.,Osyanin, Vitaly A.,Osipov, Dmitry V.,Klimochkin, Yuri N.
, p. 1517 - 1528 (2017/02/10)
A simple and efficient method for the synthesis of 4H-chromenes and 1H-benzo[f]chromenes containing a trifluoroacetyl or aroyl group in the pyran ring from o-quinone methide precursors and push-pull enaminoketones has been developed. The chromenes are presumably formed through an initial oxa-Diels-Alder reaction, followed by an elimination of amine. The possibility of further transformations of given chromenes to o-hydroxybenzylated pyrazoles, isoxazoles, and pyridines has been demonstrated.
Facile synthesis of 1,3,5-triaroylbenzenes by direct cyclotrimerization of ketone enolates
Liu, Feng-Shou,Liu, Xue-Hong,Ye, Kang-Zhi,Shen, Dong-Sheng
, p. 1640 - 1645 (2013/05/22)
Based on the improvement of the synthesis of 1,3,5-triaroylbenzenes, a convenient acid catalytic strategy was carried out and a series of 1,3,5-triaroylbenzenes were synthesized. The reaction temperature effect was investigated, and a mechanism of the cyclotrimerization has been proposed. Copyright Taylor & Francis Group, LLC.
Polycyanurate networks with enhanced segmental flexibility and outstanding thermochemical stability
Guenthner, Andrew J.,Davis, Matthew C.,Ford, Michael D.,Reams, Josiah T.,Groshens, Thomas J.,Baldwin, Lawrence C.,Lubin, Lisa M.,Mabry, Joseph M.
, p. 9707 - 9718 (2013/03/13)
The synthesis and physical properties of cyanurate networks formed from two new tricyanate monomers, 1,3,5-tris[(4-cyanatophenylmethyl]benzene and 3,5-bis[(4-cyanatophenylmethyl)]phenylcyanate, are reported and compared to those of 1,1,1-tris[(4-cyanatoph