External addition of inorganic salts (Group I and II metal halides) to the
preformed low-valent titanium reagent A (TiCl3-Li-THF) dramatically enhance
d its activity. The new reagents were used to carry out various SET reactio
ns including McMurry's olefination at a faster rate even at ambient tempera
ture. (C) 2001 Published by Elsevier Science Ltd.