Synthesis of ketones from carboxylate salts

3-Butenylmagnesium bromide is in mobile equilibrium with a small amount of cyclopropylmethylmagnesium bromide. The existence of the equilibrium has been established by deuterium-labeling techniques. Cyclopropylmethylmagnesium bromide and cyclopropylmethyllithium have been prepared by working at low 

In this section, we will discuss organometallics in which the metal is cadmium, mercury, or zinc. Grignard reagents and organolithium compounds can be converted to heavy-metal derivatives by reaction with salts of these metals. The reaction is driven forward by the tendency for formation of the ionic salt of the more electropositive metal. This reaction is well documented for organocadmium compounds and organomercurials  

Organomercury compounds can also be prepared from trialkylboranes  

---

Scheme 5.4. Synthesis of Ketones from Carboxylate Salts...

---