Arene-iminium salt electron-transfer photochemistry. Mechanistically interesting photoaddition processes
作者:Robert M. Borg、Robert O. Heuckeroth、Alexander J. Y. Lan、Suzanne L. Quillen、Patrick S. Mariano
DOI:10.1021/ja00243a028
日期:1987.4
Studies of the electron-transfer photochemistry of arene-iminium saltsystems have been explored. Fluorescence quenching investigations have demonstrated that a series of arenes including substituted toluenes and benzenes quench the fluorescence of a variety of 2-aryl-1-pyrrolinium perchlorates. Quenching rate constants in these cases correlate with the ..delta..G/sub SET/ values as expected for quenching
Photochemistry of iminium salts in the presence of N-electron donating alcohols and ethers
作者:Jerome Stavinoha、Elliott Bay、Andrea Leone、Patrick S. Mariano
DOI:10.1016/s0040-4039(00)78713-2
日期:1980.1
alcohols and ethers containing α-hydrogens leads to production of addition products. In addition, alcohols and ethers having low ionization potentials and α-hydrogens serve as efficient quenchers of fluorescence from 2-phenyl-1-pyrrolinium salts. Deuterium isotope effects on fluorescence quenching rate constants appear to implicate electrontransfer mechanisms in photoaddition and quenching pathways.
作者:Patrick S. Mariano、Jerome Stavinoha、Elliott Bay
DOI:10.1016/s0040-4020(01)92387-7
日期:——
past and current studies in the area of iminium salt photochemistry are discussed. Investigations of olefin-iminium salt photoaddition and photocyclization reactions are reviewed and conclusions about electron-transfer pathways for fluorescence quenching and reaction are discussed. The results of recent studies of alcohol and ether photoaddition to 2-phenyl-1-pyrrolinium salts are presented. These