Palladium‐Catalyzed Indirect and Regioselective Phosphonation of Azobenzenes: Toward the Design of Water‐Soluble Photoswitches - Biomolécules : Conception, Isolement, Synthèse
Article Dans Une Revue European Journal of Organic Chemistry Année : 2024

Palladium‐Catalyzed Indirect and Regioselective Phosphonation of Azobenzenes: Toward the Design of Water‐Soluble Photoswitches

Résumé

An efficient palladium‐catalyzed ortho C−H acyloxylation of azobenzenes, allowing the introduction of the difunctionalised substituent, diethylphosphonoacetate, is reported. Thanks to the mild reaction conditions implemented, this regioselective late‐stage ortho ‐functionalization tolerates a wide range of functional groups and permits the access of diversely substituted azobenzenes in good to excellent yields. Selective hydrolysis of the diethyl phosphonate group leads to stable water‐soluble azo‐photoswitches with interesting photophysical properties such as an extended Z‐ isomer half‐life, opening new opportunities in the design of optochemical tools for the exploration of living organisms.

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Chimie
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hal-04739274 , version 1 (16-10-2024)

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Ivanna Amarsy, Nicolas Gigant, Izel D Erturk, Nicolas Bogliotti, Delphine Joseph, et al.. Palladium‐Catalyzed Indirect and Regioselective Phosphonation of Azobenzenes: Toward the Design of Water‐Soluble Photoswitches. European Journal of Organic Chemistry, 2024, 27 (28), pp.e202400406. ⟨10.1002/ejoc.202400406⟩. ⟨hal-04739274⟩
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