Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The solvolysis of 4,7,7-trimethyl-1-norbornyl triflate (5) proceeds under σ-participation of the C 4 C 7 bond, with formation of the σ bridged cation 22 as intermediate. ... The solvolysis of 4,7,7-trimethyl-1-norbornyl triflate proceeds under σ-participation of the C 4 C 7 bond, ...