%0 Journal Article %A Sundararajan, Chitra %A Falvey, Daniel E. %D 2005 %T Photolytic Release of Carboxylic Acids Using Linked Donor−Acceptor Molecules:  Direct versus Mediated Photoinduced Electron Transfer to N-Alkyl-4-picolinium Esters %U https://acs.figshare.com/articles/journal_contribution/Photolytic_Release_of_Carboxylic_Acids_Using_Linked_Donor_Acceptor_Molecules_Direct_versus_Mediated_Photoinduced_Electron_Transfer_to_i_N_i_Alkyl_4_picolinium_Esters/3280933 %R 10.1021/ol050744n.s001 %2 https://acs.figshare.com/ndownloader/files/5118679 %K benzophenone %K mediator %K Efficient %K photoreduction %K Ester %K Donor %K Carboxylic Acids %K Photolytic Release %K carboxylic acids %K Molecule %K mechanism %K ester %K Mediated Photoinduced Electron Transfer %K Alkyl %K molecule %K electron transfer %K alkyl %K covalently %K photorelease %X Efficient photorelease (Φ = 0.7) of carboxylic acids is achieved with a covalently linked mediator (benzophenone) protecting group (N-alkyl-4-picolinium ester) molecule. The mechanism involves initial photoreduction of the mediator, followed by rapid electron transfer to the protecting group. %I ACS Publications