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Organic letters

Direct access to enantioenriched spiroacetals through asymmetric relay catalytic three-component reaction.


PMID 23312017

Abstract

The gold(I)/chiral Brønsted acid relay catalysis enabled a highly stereoselective three-component reaction of salicylaldehydes, anilines, and alkynols to give aromatic spiroacetals in high yields and stereoselectivities.