Diasterocontrol in the intramolecular meta-photocycloaddition of arenes and olefines.

The intramolecular arene-olefin photoannulation reaction of diastereopure substrates and gave diastereopure and whose structures were determined by spectroscopic methods and confirmed by X-ray crystallography.

The regiospecific Fischer indole reaction in choline chloride.2ZnCl2 with product isolation by direct sublimation from the ionic liquid.

The Fischer indole synthesis occurs in high yield with one equivalent of the ionic liquid choline chloride[middle dot]2ZnCl(2); exclusive formation of 2,3-disubstituted indoles is observed in the reaction of alkyl methyl ketones, and the products readily sublime directly from the ionic liquid.