61882-98-2Relevant academic research and scientific papers
Enantio- and regioselective CuH-catalyzed hydroamination of alkenes
Zhu, Shaolin,Niljianskul, Nootaree,Buchwald, Stephen L.
, p. 15746 - 15749 (2013)
A highly enantio- and regioselective copper-catalyzed hydroamination reaction of alkenes has been developed using diethoxymethylsilane and esters of hydroxylamines. The process tolerates a wide variety of substituted styrenes, including trans-, cis-, and β,β-disubstituted styrenes, to yield α-branched amines. In addition, aliphatic alkenes coupled to generate exclusively the anti-Markovnikov hydroamination products.
Enantiopure dendritic polyoxometalates: chirality transfer from dendritic wedges to a pom cluster for asymmetric sulfide oxidation
Jahier, Claire,Cantuel, Martine,McClenaghan, Nathan D.,Buffeteau, Thierry,Cavagnat, Dominique,Agbossou, Francine,Carraro, Mauro,Bonchio, Marcella,Nlate, Sylvain
supporting information; experimental part, p. 8703 - 8708 (2010/03/25)
The synthesis and characterization of four enantiopure polyoxometalate- cored dendrimers, which contain n-propyl and epoxy groups, based on electrostatic interactions between enantiopure dendritic quaternary ammonium ions and an a chiral trianionic POM has been reported. The optical and chiroptical properties of the n-propyl-terminated POM-cored dendrimers have been demonstrated in solution by UV/Vis spectroscopy, circular dichroism (CD) and vibrational circular dichroism (VCD) spectroscopy, and fluorimetry. The solution CD, UV/Vis and VCD data indicate a significant induced optical activity in the POM cluster. The appropriate elaboration of optimized dendritic structures enabled the use of a range of POM species, and represented a promising approach to efficient, recoverable, and highly enantioselective dendritic POM future catalysts.
