The author of ãNew Set of Multicomponent Crystals as Efficient Heterogeneous Catalysts for the Synthesis of Cyclic Carbonatesã?were Kundu, Arunangshu; Saikia, Swagata; Majumder, Manoj; Sengupta, Oindrila; Bhattacharya, Biswajit; De, Gobinda Chandra; Ghosh, Sushobhan. And the article was published in ACS Omega in 2019. Product Details of 1195-59-1 The author mentioned the following in the article:
Three new multicomponent crystals of Zn(II), Mn(II) and Co(II) resp. were synthesized by the reaction of 2,6-bis(hydroxymethyl)pyridine, the resp. metal salts and sodium benzoate in 1:1:2 ratio. One component of these multicomponent crystals is the dicationic 2,6-bis(hydroxymethyl)pyridine metal complex and the other component is the dianionic tetrabenzoate complex of the same metal. The complexes were fully characterized by single crystal X-ray structure determination The X-ray structure of these compounds reveal the formation of 1D supramol. chain parallel to the crystallog. b axis via H-bonding interaction between the dicationic and the dianionic parts of the resp. compound The Mn(II) and Co(II) complexes show antiferromagnetic coupling between the two associated metal centers via H-bonding interaction pathway. All the three compounds were tested as heterogeneous catalystic systems for the successful conversion of epoxides to cyclic carbonates in solvent free condition under approx. 10 bar of pressure of CO2 and temperature ranging between 60 – 80 °C along with tetra-Bu ammonium bromide acting as cocatalyst. All the three compounds were found to have turnover number more than 1000 for the resp. epoxides except for the conversion of cyclohexene oxide to cyclohexene carbonate. In the experiment, the researchers used 2,6-Pyridinedimethanol(cas: 1195-59-1Product Details of 1195-59-1)
2,6-Pyridinedimethanol(cas: 1195-59-1) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Product Details of 1195-59-1
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