Carbometallation carbopalladation

Even the early concepts concerning the mechanism of the Heck reaction served as reasonable working hypotheses (for details see Sect. IV.2.1.1). The actual C—C bondforming reaction is a carbopalladation of C,C double bond, and it can be used to bind alkenyl, aryl, allyl (the intramolecular carbometallation of an allyhc substrate is called a... 

An interesting sequential reaction, consisting of an intermolecular alkene carbometallation and subsequent intermolecular alkyne cross-coupling, has been reported (Scheme 8.87) [601]. Starting from an immobihzed tropane framework 459, stoichiometric carbopalladation yields a stable organopalladium intermediate, which in the presence of copper(I) iodide undergoes coupling with an added terminal acetylene. 

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