Experimental evidence for a phenyl cation intermediate in the solvolysis reactions of dienynyl trifluoromethanesulphonates
Abstract
The synthesis, separation, and solvolysis of the stereoisomeric dienynyl trifluoromethanesulphonates (1) are described, whereby the E-isomers, in contrast with the Z-isomers, rearrange to a remarkable extent to form the phenyl ethers (5)via the phenyl cations (2).