A C-C bond formation reaction at the α-carbon atom of α-oxo ketene dithioacetals via the Baylis-Hillman type reaction

The first example of TiCl4-mediated Baylis-Hillman type reaction of α-acetyl cyclic ketene dithioacetals with arylaldehydes was described. This methodology adds a new entry to the C-C bond formation at the α-carbon atom of α-oxo ketene dithioacetals.