Loss of benzene to generate an enolate anion by a site??specific double??hydrogen transfer during CID fragmentation of o??alkyl ethers of ortho??hydroxybenzoic acids
AB Attygalle, JB Bialecki, U Nishshanka…
文献索引：Attygalle, Athula B.; Bialecki, Jason B.; Nishshanka, Upul; Weisbecker, Carl S.; Ruzicka, Josef Journal of Mass Spectrometry, 2008 , vol. 43, # 9 p. 1224 - 1234
Abstract Collision-induced dissociation of anions derived from ortho-alkyloxybenzoic acids provides a facile way of producing gaseous enolate anions. The alkyloxyphenyl anion produced after an initial loss of CO 2 undergoes elimination of a benzene molecule by a double-hydrogen transfer mechanism, unique to the ortho isomer, to form an enolate anion. Deuterium labeling studies confirmed that the two hydrogen atoms transferred in the ...
