Reductive coupling of aromatic ketones by low-valent titanium salts
Abstract
Reaction of sterically congested aromatic ketones with the McMurry reagent (4TiCl3,LiAlH4) in tetrahydrofuran yields is not only the olefins (E- and Z-isomers), but also the corresponding ethanes and some other products. We have studied the minor or non-normal products of this reaction.