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BODIPY-derived photoremovable protecting groups unmasked with green light.

Journal of the American Chemical Society (2015-03-10)
Pratik P Goswami, Aleem Syed, Christie L Beck, Toshia R Albright, Kaitlyn M Mahoney, Ryan Unash, Emily A Smith, Arthur H Winter
ABSTRACT

Photoremovable protecting groups derived from meso-substituted BODIPY dyes release acetic acid with green wavelengths >500 nm. Photorelease is demonstrated in cultured S2 cells. The photocaging structures were identified by our previously proposed strategy of computationally searching for carbocations with low-energy diradical states as a possible indicator of a nearby productive conical intersection. The superior optical properties of these photocages make them promising alternatives to the popular o-nitrobenzyl photocage systems.

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Sigma-Aldrich
WinterGreen carbamoyl imidazole photocage, ≥95%