How to remove pyridine from Reaction mixture containing chiral molecule with diacetal protection group? While working with chiral molecule, we have pyridine in our reaction mixture. Molecule has four chiral centre and protection group-diacetal and acetyl groups which may break in harsh conditions. Please suggest work up methods to remove pyridine.
Extract the organic soln of the product with dilute aq. Cu(II) until the characteristic blue of the Cu-pyridine complex is absent from the aq. phase.