1802-38-6Relevant articles and documents
Synthesis, characterization and applications of organomecury(II) pyrrolidine-N-thiohydrazide complexes
Kaushik, N. K.,Sharma, Rama
, p. 1778 - 1784 (2021/06/06)
The complexes of organomercury(II) with pyrrolidine-N-thiohydrazide of the type RHg(L)Cl where[R=C6H5(phenyl), p-ClC6H4(p-chlorophenyl), p-BrC6H4(p-bromophenyl), o-, p-HOC6H4, (o-,p-hydroxyphenyl), L = pyrrolidine-N-thiohydrazide, have been synthesized and characterized by elemental analysis, IR,1H-NMR and electronic spectral analysis. Thermogravimetric and differential thermal analytical curves are used to calculate thermodynamic parameters and variations in these parameters have been correlated with complex structural parameters. All complexes were tested in vitro for their antibacterial activity against Gram-negative bacteria, namely, Escherichia coli, Zymomonas mobilis and against two pathogenic fungal strains, namely, Aspergillus niger and Cerveleria.
Substituent effects in aromatic substitution of aryltriethyltin compounds by mercuric halides
Sedaghat-Herati, M. Reza,Sharifi, Taghi
, p. 39 - 44 (2007/10/02)
Second-order rate constants are reported for the reaction of some YC6H4SnEt3 compounds with mercuric halides in tetrahydrofuran, and show that the reaction is one of low selectivity.The substituent effects can be correlated only in terms of Hammett ?-constants, and the data for the meta-methoxy group are anomalous.The results indicate that the rate determining step involves reaction of a ?-complex.Activation parameters are reported, and are in accordance with the suggested mechanism.
REARRANGEMENT AND CATALYSIS IN THE SEYFERTH REACTION.
Lambert,Bosch,Mueller,Kobayashi
, p. 3584 - 3589 (2007/10/02)
The Seyferth reagent PhHgCBr//3 reacts with trans-1,2-dichloroethene to give two major products, trans-1,1-dibromo-2,3-dichlorocyclopropane (C) and 1,1-dibromo-3,3-dichloropropene (P). The stereospecifically formed cyclopropane is consonant with a singlet carbene mechanism, but the rearranged propene requires a second intermediate. Observation that the concentration ratio left bracket P right bracket / left bracket C right bracket is inversely proportional to the concentration of the alkene demonstrates that there are two intermediates, that the cyclopropane comes from the first-formed intermediate, and that the propene comes from the second-formed intermediate.