22068-55-9Relevant academic research and scientific papers
Synthesis and evaluation of guanidine-containing schiff base copper(II), zinc(II), and iron(III) chelates as trypsin inhibitors
Toyota, Eiko,Sekizaki, Haruo,Itoh, Kunihiko,Tanizawa, Kazutaka
, p. 625 - 629 (2003)
3-Formyl-4-hydroxyphenylguanidine hydrochloride and its Schiff base copper(II), zinc(II), and iron(III) chelates were synthesized and their inhibitory activity against bovine β-trypsin were determined. Syntheses of Schiff base metal chelates were carried
Modulation of olefin metathesis reactions by chelation
Scherbakow, Swetlana,Keller, Manfred,Bannwarth, Willi
, p. 5331 - 5345 (2014/10/15)
We describe the modulation of catalytic activities by adjacent chelating entities as a new and hitherto unknown principle. It is demonstrated for ring-closing metathesis (RCM) as well as for cross metathesis (CM) reactions. For this purpose, we have modified a Hoveyda-type metathesis catalyst by employing two different chelators. Complexation of the chelators led to an electron-withdrawing effect that resulted in enhanced catalytic activity. This enhancement was dependent on the complexed metal ion and allowed a gradual adjustment of the activity of the catalyst. The application of this new approach might be extendable to other catalytic systems as well. Copyright
Acetalization of carbonyl compounds catalyzed by bismuth triflate under solvent-free conditions
Aliyan, Hamid,Fazaeli, Razieh,Massah, Ahmad Reza,Momeni, Ahmad Reza,Naghash, Hamid Javaherian,Moeinifard, Behzad
experimental part, p. 873 - 876 (2012/04/05)
Carbonyl compounds were converted to the corresponding 1,3-dioxolanes and 1,3-dioxanes with ethylene glycol and 1,3-propandiol in the presence of bismuth triflate under solvent-free conditions. In addition, high chemoselective protection of aldehydes in the presence of ketones has been achieved.
EPOTHILONE ANALOGS FOR SITE SPECIFIC DELIVERY IN THE TREATMENT OF PROLIFERATIVE DISEASES
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Page 41, (2008/06/13)
Conjugates of epothilones and epothilone derivatives (as effectors) with suitable saccharides or saccharide derivatives (as recognition units) are described. Their production is carried out by the recognition units being reacted with suitable linkers, and
