NICKEL-CATALYZED 1,4-ADDITION OF ORGANOTITANIUM ATE COMPLEXES TO STERICALLY HINDERED ENONES

The 1,4-addition of organotitanium ate complexes to enones by nickel catalysis is reported. With a methyltitanium ate complex good yields of conjugate addition to sterically hindered enones are achieved. Phenyltitanium ate complexes react with less sterically encumbered enones to the 1,4-addition products in moderate to high yields.