2363-84-0Relevant academic research and scientific papers
DNA-based asymmetric organometallic catalysis in water
Oelerich, Jens,Roelfes, Gerard
, p. 2013 - 2017 (2013)
Here, the first examples of DNA-based organometallic catalysis in water that give rise to high enantioselectivities are described. Copper complexes of strongly intercalating ligands were found to enable the asymmetric intramolecular cyclopropanation of α-diazo-β-keto sulfones in water. Up to 84% ee was achieved, in the presence of salmon testes DNA as the only source of chirality, using dipyrido[3,2-a:2′,3′-c]phenazine (dppz) derivatives as ligands.
Phase-Transfer Catalytic Oxidation of Terminal Alkynes to Keto Aldehydes by Dilute Hydrogen Peroxide
Ballistreri, Francesco Paolo,Failla, Salvatore,Tomaselli, Gaetano Andrea
, p. 830 - 831 (2007/10/02)
A phase-transfer procedure for the oxidation of terminal alkynes under mild conditions is described.The catalytic system involves dilute hydrogen peroxide, Na2MO4 salts (M=Mo(VI), W(VI)), and Hg(OAc)2.In the absence of mercuric derivative no oxidation takes place.By changing the pH of the aqueous phase and the nature of the phase transfer agent, either cationic or neutral, as well as the metal (Mo or W), carboxilic acids or α-keto aldehydes may be selectively obtained in fairly good yields.
A NEW FACILE SYNTHESIS OF α-DICARBONYL COMPOUNDS BY OXIDATION OF ALKYNES WITH Mo(VI) PEROXOCOMPLEX PROMOTED BY MERCURIC ACETATE
Ballistreri, Francesco P.,Failla, Salvatore,Tomaselli, Gaetano A.,Curci, Ruggero
, p. 5139 - 5142 (2007/10/02)
Mercuric acetate promoted oxidation of diaryl-, dialkyl-, and aralkylalkynes with (HMPA)MoO(O2)2 in 1,2-dichloroethane affords the corresponding α-diketones in good yields.Likewise, terminal alkynes can be converted into α-ketoaldehydes in excellent yields by using the same oxidizing system.
