Esko Taskinen
YOU?
Author Swipe
View article: Harnessing Photochemistry in Natural Product Synthesis: From Strategy to Applications
Harnessing Photochemistry in Natural Product Synthesis: From Strategy to Applications Open
Photochemistry and total synthesis are deeply rooted in the history of organic chemistry, each developing independently while also intersecting frequently. Indeed, mild reaction conditions, versatility of transformations, and complementary…
View article: Modifying Photocatalyst’s Activity with a Non-Conjugated Charged Group
Modifying Photocatalyst’s Activity with a Non-Conjugated Charged Group Open
Here, we describe the design, synthesis, and photophysical characterization of a novel series of quinolinium-derived photocatalysts that feature a second charged group separated from the redox-active core by an N-alkyl chain. Using these c…
View article: Mechanistic study of the light-initiated generation of free diazoalkanes: Towards photo-orthogonal synthesis
Mechanistic study of the light-initiated generation of free diazoalkanes: Towards photo-orthogonal synthesis Open
An in-depth mechanistic study for the photogeneration of free diazoalkanes from N-tosylhydrazone precursors by combining synthetic observations with spectroscopic and theoretical methods is presented. The N-tosylhydrazones have been previo…
View article: Preassembly‐Controlled Radical Recombination at Bismuth: Decarboxylative C─N Coupling with Sulfonamides
Preassembly‐Controlled Radical Recombination at Bismuth: Decarboxylative C─N Coupling with Sulfonamides Open
Persistent transition metal radicals form the foundation for many metallaphotoredox protocols. Their ability to efficiently trap organic radicals and convert them into various coupling products has inspired the exploration of selective rad…
View article: Photocatalyzed Dehydration of 1‐Aryl‐1,2‐Ethanediols to Methyl Ketones Driven by Eosin Y Fragmentation Products
Photocatalyzed Dehydration of 1‐Aryl‐1,2‐Ethanediols to Methyl Ketones Driven by Eosin Y Fragmentation Products Open
Herein, we report a mild photocatalytic redox‐neutral dehydration of aryl‐1,2‐ethanediols forming the respective methyl ketones. In the proposed mechanistic cycle an initial hydrogen atom abstraction (HAT) is followed by a 1,2‐spin center …