Pseudo enantiomeric mixed S/P ligands derived from carbohydrates for the 1,4-addition of phenyl boronic acid to cyclohexenone
نویسندگان
چکیده
منابع مشابه
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Cumulative formation constants for the interaction of phenylboronic acids with 1,2-diols and structurally related α-hydroxy carboxylic acids were determined by potentiometric titration in aqueous solution. Although there is a significant electronic effect on the acidity of phenylboronic acid (ρ = 2.1), there is no marked electronic effect on the stability of the complexes. Rather, the complexes...
متن کاملTunable coordination of a tropos phosphite for fine-tuning of the Rh catalyzed asymmetric addition of phenylboronic acid to cyclohexenone.
Using the deoxycholic acid derived tropos biphenylphosphite as a Rh(i) chiral ligand different complexes are obtained, depending on the Rh : L molar ratio, that give rise to the formation of different chiral products in the asymmetric addition of phenylboronic acid to cyclohexenone.
متن کاملSynthesis and characterization of some transition metal complexes with new mixed-donor schiff base ligands derived from 2-hydroxynaphthaldehyde
2-[3-(2-Formylnaphthoxy)-2-hydroxypropoxy] naphthaldehyde (1) have been prepared by reaction of 2-hydroxynaphthaldehyde with 1,3-dichloro-2-propanol. New N2O3 macro-acyclic ligands (L1, L2) synthesized from the reaction of (1) with aniline or cyclohexylamine. Ni (II), Co (II) and Cu (II) complexes was prepared from reaction of Schiff-bases with metal chloride and nitrate salts. All of these com...
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ژورنال
عنوان ژورنال: RSC Advances
سال: 2016
ISSN: 2046-2069
DOI: 10.1039/c5ra10181f