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Combining Photodeprotection and Ligation into a Dual‐Color Gated Reaction System
Author(s) -
Alves Jessica,
Krappitz Tim,
Feist Florian,
Blinco James P.,
BarnerKowollik Christopher
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202003546
Subject(s) - photochemistry , visible spectrum , adduct , irradiation , dual (grammatical number) , wavelength , chemistry , optoelectronics , materials science , organic chemistry , physics , art , literature , nuclear physics
We report a photochemical reaction system which requires activation by two colors of light. Specifically, a dual wavelength gated system is established by fusing the visible light mediated deprotection of a dithioacetal with the UV light activated Diels–Alder reaction of an o ‐methylbenzaldehyde with N ‐ethylmaleimide. Critically, both light sources are required to achieve the Diels–Alder adduct, irradiation with visible or UV light alone does not lead to the target product. The introduced dual gated photochemical system is particularly interesting for application in light driven 3D printing, where two color wavelength activated photoresists may become reality.