نتایج جستجو برای: unsymmetrical ligand

تعداد نتایج: 108948  

Journal: :iranian journal of science and technology (sciences) 2012
m. hosseini-sarvari

the treatment equimolar quantities of carboxylic acids with acid chlorides in the presence of zno brings abouthighly efficient unsymmetrical anhydrides at room temperature in solvent-free condition. reactivity trendsfavored formation of the product using both electron deficient and rich aryl acids and acid chlorides.

Journal: :Bulletin of the American Mathematical Society 1948

Journal: :Transactions of the American Mathematical Society 1965

2006
Norberto S. Gonçalves Adolfo Horn Mauricio Lanznaster Lucia K. Noda Ademir Neves

Neste trabalho, investigamos os perfis de excitação Raman do complexo [FeFe(bpbpmp) (C 2 H 3 O 2 ) 2 ](ClO 4 ) (1) e de sua inédita forma oxidada, [FeFe(bpbpmp)(C 2 H 3 O 2 ) 2 ](ClO 4 ) 2 (2), sendo bpbpmp a molécula 2-bis[{(2-piridilmetil)-aminometil}-6-{(2-hidroxibenzil)(2piridilmetil)}-aminometil]-4-metilfenol. No complexo 1, o modo vibracional mais intensificado no espectro Raman é o corre...

Journal: :The Journal of Organic Chemistry 2007

Journal: :Organic & biomolecular chemistry 2006
Richard Amewu Andrew V Stachulski Stephen A Ward Neil G Berry Patrick G Bray Jill Davies Gael Labat Livia Vivas Paul M O'Neill

Unsymmetrical dispiro- and spirotetraoxanes have been designed and synthesized via acid-catalyzed cyclocondensation of bis(hydroperoxides) with ketones. Incorporation of water-soluble and polar functionalities, via reductive amination and amide bond formation, produces several analogues with low nanomolar in vitro antimalarial activity. Several analogues display an unprecedented level of oral a...

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