Stereospecific alcohol elimination from dialkyl mesaconates under electron impact: Another example of a hidden hydrogen transfer
作者:Daniel Bornstein、Adrian Weisz、Asher Mandelbaum
DOI:10.1002/oms.1210210410
日期:1986.4
AbstractUnder electron impact dimethyl and diethyl mesaconates give rise to abundant [M MeOH]+ and [M EtOH]+ ions, respectively. The geometrically isomeric citraconates yield [M MeO]+ and [M EtO]+ ions. Mixed methyl ethyl mesaconates eliminate both methanol and ethanol. These findings, together with the results of a deuterium labelling study, indicate that the elimination of alcohol from the molecular ions of the mesaconates is partially preceded by a hidden hydrogen transfer step.
Ring-Opening Reactions of Cyclopropanes. Part 6. A Facile Synthesis of Dialkyl Sulfenylbutanedioates