Highly Efficient Photolabile Protecting Groups with Intramolecular Energy Transfer
Goris The light sensitivity of photolabile protecting groups of the nitrophenylpropoxycarbonyl (NPPOC) type was enhanced by up to a factor of 25. This was achieved by covalently linking the protecting group to a sensitizer with a much better absorptivity and the ability to transfer its electronic excitation to the protecting group (see scheme).
