作者:Farbod Salahi、Vatsal Purohit、Guillermo Ferraudi、Cynthia Stauffacher、Olaf Wiest、Paul Helquist
DOI:10.1021/acs.orglett.8b00697
日期:2018.5.4
The synthesis of a new photocaged nicotinamide having an N-acyl carbamate linker and a p-hydroxyphenacyl (pHP) chromophore is described. The photophysical and photochemical studies showed an absorption maximum at λ = 330 nm and a quantum yield for release of 11% that are dependent upon both pH and solvent. While the acyl carbamate releases nicotinamide efficiently, a simpler amide linker was inert
描述了具有N-酰基氨基甲酸酯连接基和对-羟基苯甲酰基(pHP)发色团的新型光笼烟酰胺的合成。光物理和光化学研究显示,在λ= 330 nm处有最大吸收,释放的量子产率为11%,这取决于pH和溶剂。尽管酰基氨基甲酸酯能有效释放烟酰胺,但更简单的酰胺连接基对光裂解是惰性的。该光笼式烟酰胺在量子产率,吸收波长,释放速率和溶解度方面具有明显的优势,这使其成为光笼式酰胺的第一个实际实例。