41. The reaction is a type of electrophilic allyl shift with formation of an intermediate beta-silyl carbocation . 42. It is suggested that the carbocation elimination is directed to retain the proper structure of the isoprooyl group. 43. Polymerization results from the addition of a second olefin to the C8 carbocation formed in the primary reaction. 44. A "'pyramidal carbocation "'is a type of carbocation with a specific configuration. 45. A "'pyramidal carbocation "'is a type of carbocation with a specific configuration. 46. The chemical basis for Markovnikov's Rule is the formation of the most stable carbocation during the addition process. 47. One alkyl substituent migrates from carbon to the adjacent oxygen atom, replacing the carboxylic acid leaving behind a carbocation . 48. After the removal of pyrophosphate, the ring closes leaving a carbocation on the tertiary carbon attached to the ring. 49. With the free radical now at C-12, the iron heme then oxidizes this radical to a carbocation . 50. The inferred instability of this diazonium ion gave solid evidence for the existence of a carbocation in the TDR mechanism.
