Conjugated ketones 2 were obtained in high yields ... 1 Only in the case of lc the yield resulted very poor (<5%) (Table 11), the formation of 4c prevailing by far. This fact is probably due to the severe interaction between ... 1284 G. Chelucci, S. Cossu and F. Soccolini ... Boiling points are uncorrected. The gc analyses were performed on a Perkin-Elmer 3920-B gas chromatograph, using 2 m x 2 mm column packed with 10% SP-lo00 on Supelcoport ...
