Tebbe's reagent can react with a Lewis base to form the Schrock type of these, while another class of them can act like ketones and is named for Ernst Fischer.
This kind of compound is the last intermediate in the Bamford-Stevens reaction, and the foiled type of them is stabilized by the presence of a nearby double bond. In credit for his isolation of them, Arduengo's name is sometimes attached to the persistent, or stable kind of these compounds. Tebbe's reagent can react with a Lewis base to form the Schrock type of these, while another class of them can act like ketones and is named for Ernst Fischer. A common example is formed by reacting chloroform with a strong base, and they can add to alkenes to form stereo-specific cyclopropanes. FTP, name these reactive intermediates that are typically sp2 hybridized with a divalent carbon, an empty p orbital, and an unshared pair of electrons, making them electrically neutral.
This kind of compound is the last intermediate in the Bamford-Stevens reaction, and the foiled type of them is stabilized by the presence of a nearby double bond.
{carbene}