1309575-95-8Relevant academic research and scientific papers
Synthesis, characterization and X-ray studies of new six-seven membered rings [4.5.0] heterobicyclic system of monomeric boronates
Rivera, José María,Méndez, Enrique,Colorado-Peralta, Raúl,Rincón, Susana,Farfán, Norberto,Santillán, Rosa
, p. 26 - 32 (2012/07/16)
Different tridentate ligands derived from ethanolamines and 2-hydroxyacetophenone, 2-hydroxybenzophenone and salicylaldehyde were reacted with two equivalents of phenylboronic acid to obtain compounds 6a-6f which are [4.5.0] heterobicyclic systems with a
Synthesis, characterization and X-ray studies of new chiral five-six-membered ring, [4.3.0] heterobicyclic system of monomeric boronates
Rivera, José María,Rincón, Susana,Farfán, Norberto,Santillan, Rosa
, p. 2420 - 2428 (2011/06/24)
Nine new boronates, six of them chiral, with five-six-membered ring heterobicycles were prepared by reaction of the Schiff bases and phenyl boronic acid. The boronates were fully characterized by spectroscopic techniques, NMR 1H, 13C, 11B, Infrared spectroscopy, mass spectrometry and elemental analysis. The reaction showed high diasteroselectivity, only in the case of compound 4c, containing a methyl substituent in the aliphatic moiety, the induction is low giving a 2:1 mixture of two diatereoisomers. The results showed that the preferred stereochemistry in the heterocycles is that where all substituents in the five membered ring and the phenyl group attached to boron atom are on the same side.
