The first step of ethylating benzene produces one of these compounds.
One of these compounds can be formed by combining silver hexa-fluoro-phosphate with tri-phenyl-methyl chloride. Another of these can be formed by ultraviolet photoionization of a methyl radical. The first step of ethylating benzene produces one of these compounds. They are produced by the Friedel-Crafts alkylation in cases where the chloride is not secondary or tertiary, but they are not produced by Friedel-Crafts acylation. 1,2 anionotropic rearrangements are usually initialized by the heterolysis of one of these compounds. Their nomenclature was proposed by George Olah, who classified them by their valence. These compounds are often the intermediates in electrophilic aromatic substitutions and SN1 reactions. Examples of them include the Wheland intermediate, where a ring delocalizes the charge. For 10 points, name these compounds with a positively-charged carbon ion.
One of these compounds can be formed by combining silver hexa-fluoro-phosphate with tri-phenyl-methyl chloride.
carbocation [or carbonium ion]