Photochemically Removable Protecting Groups Based on Covalently Linked Electron Donor−Acceptor Systems
作者:Kwangjoo Lee、Daniel E. Falvey
DOI:10.1021/ja9939441
日期:2000.10.1
Photoremovable protectinggroups based on intramolecular electron transfer have been synthesized and studied. One molecule contains a N,N-dimethylaniline chromophore covalently linked to a phenacyl ester of acetic acid. UV photolysis of this molecule results in the release of acetic acid. Laserflashphotolysis experiments show that photolysis creates an intramolecular charge-transfer state that has a