Metalcarbanions
Metalcarbanions are chemical species characterized by a carbon atom bearing a negative charge that is directly bonded to a metal atom. These compounds are a type of organometallic compound and are often considered the most reactive class of organometallics. The carbon-metal bond in metalcarbanions is highly polar, with a significant degree of ionic character, due to the large electronegativity difference between carbon and most metals. This polarity makes the carbon atom strongly nucleophilic and basic.
The reactivity of metalcarbanions stems from their ability to act as strong bases and nucleophiles. As bases,
The stability and reactivity of metalcarbanions depend heavily on the nature of the metal and any other