Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Product Details of 87-91-2, 87-91-2, Name is (2R,3R)-Diethyl 2,3-dihydroxysuccinate, SMILES is O=C(OCC)[C@H](O)[C@@H](O)C(OCC)=O, belongs to chiral-catalyst compound. In a document, author is Zhou, Li, introduce the new discover.
Facile synthesis of high optically active helical polymers from achiral monomers still remains a great challenge. In this work, two chiral Ni(II) catalysts bearing chiral R- or S-2a ligands were facilely prepared which can efficiently initiate the living/controlled polymerization of allene monomers and afford well-defined polyallenes in high yields with controlled molecular masses (M(n)s) and low molecular mass distributions (M-w/M(n)s). The catalysts showed interesting regioselectivity on the cumulated double bonds of allene monomers, as the polymerizations were highly selective which occurred on 2,3-double bonds. Moreover, the polymerization of achiral allene monomers using chiral Ni(II) catalysts showed remarkable helix-sense selectivity. The yielded polyallenes exhibited high optical activity due to the formation of a predominant one-handed helix as revealed by circular dichroism, UV-vis, and direct atomic force microscopy (AFM) observations as well. The predominant one-handed helicity of the generated polyallenes was solely determined by the chirality of the Ni(II) catalysts.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 87-91-2. Product Details of 87-91-2.
Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare