New Photoactivated Protecting Groups. 7. p-Hydroxyphenacyl: A Phototrigger for Excitatory Amino Acids and Peptides

摘要

A second plausible mechanistic pathway involving initial hemolytic fragmentation of the ester CO_2-C bond from the excited triplet of the phenacyl chromophore followed by rapid electron transfer has been suggested for the singlet state photochemistry of benzyl acetates, Picalates, and phos- phates, in polar, hydroxylic solvents and has been extended to desyl amino acids and to p-hydroxyphenacyl and desyl phosphates.