1 Dipartimento di Chimica Generale e Chimica Organica, Università degli Studi di Torino, Via Pietro Giuria, 7, 10125, Torino, Italy. margherita.barbero@unito.it
o-Benzenedisulfonimide, a new strong bench-stable Brønsted acid, has been shown to efficiently catalyze the Mukaiyama aldol reaction of aldehydes or dimethyl acetals with silyl enol ethers under mild solvent-free reaction conditions.