6725-34-4Relevant articles and documents
Heterometallic coordination polymers: syntheses, structures and heterogeneous catalytic applications
Bansal, Deepak,Pandey, Saurabh,Hundal, Geeta,Gupta, Rajeev
, p. 9772 - 9781 (2015/12/01)
A metalloligand Na[Co(L1)2] (1) of the ligand H2L1 (N2,N6-bis(4,5-dihydrothiazol-2-yl)pyridine-2,6-dicarboxamide) offering appended thiazoline rings has been used for the synthesis of one-dimensional {Co3+-Zn2+} (2), {Co3+-Cd2+} (3) and {Co3+-Hg2+} (4) coordination polymers. 1 offers appended thiazoline rings having both soft sulphur and hard nitrogen donors. The crystal structures of 2 and 3 display the coordination of hard thiazoline-N donors to Zn2+ and Cd2+ ions. Interestingly, 4 illustrates the bonding through both hard thiazoline-N and soft thiazoline-S donors. The three heterometallic coordination polymers have been used as reusable heterogeneous catalysts for the ring-opening reactions of oxiranes and thiiranes; Knoevenagel condensation of benzaldehydes and benzothialdehydes; and cyanation reactions of aldehydes and carbothialdehydes. Our results demonstrate that the relative size and Lewis acidity of secondary metals potentially control the catalytic outcome via preferential interaction with the substrates.
The oxidation of thiols by flavoprotein oxidases: A biocatalytic route to reactive thiocarbonyls
Ewing, Tom A.,Dijkman, Willem P.,Vervoort, Jacques M.,Fraaije, Marco W.,Van Berkel, Willem J.H.
supporting information, p. 13206 - 13209 (2015/02/19)
Flavoprotein oxidases are a diverse class of biocatalysts most of which catalyze the oxidation of C-O C-N or C-C bonds. Flavoprotein oxidases that are known to catalyze the oxidation of C-S bonds are rare being limited to enzymes that catalyze the oxidative cleavage of thioethers. Herein we report that various flavoprotein oxidases previously thought to solely act on alcohols also catalyze the oxidation of thiols to thiocarbonyls. These results highlight the versatility of enzymatic catalysis and provide a potential biocatalytic route to reactive thiocarbonyl compounds which have a variety of applications in synthetic organic chemistry.
Synthesis of indole, benzofuran and benzothiophene by pyrolysis of 2-anilinoethanol, 2-phenoxyethanol and 2-(phenylthio)ethanol acetates
Afxantidis, Jean,Aune, Jean-Pierre
, p. 395 - 403 (2007/10/03)
The synthesis of indole is possible by pyrolysis of compounds of the general formula : ΦNHCH2CH2X. The pyrolysis of the acetates (X = OCOCH3) of 2-anilinoethanol 3a, 2-phenoxyethanol 3b and 2-(phenylthio)ethanol 3c was studied by surface response methodology. A possible mechanism involving a radical pathway is discussed in terms of bond dissociation energies, thermal stability of the pyrolysis products and configuration of the radical intermediates. Elsevier,.
