Volume 126, Issue 33 pp. 8826-8830
Zuschrift

Photocaging of Carboxylic Acids: A Modular Approach

Dr. Wiktor Szymański

Dr. Wiktor Szymański

Center for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands)

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Willem A. Velema

Willem A. Velema

Center for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands)

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Prof. Dr. Ben L. Feringa

Corresponding Author

Prof. Dr. Ben L. Feringa

Center for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands)

Center for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands)Search for more papers by this author
First published: 05 May 2014
Citations: 8

We thank Claudia Poloni for insightful discussions. Financial support from and the Ministry of Education, Culture and Science (Gravity program no. 024.001.035), Royal Netherlands Academy of Sciences (KNAW academy chair), and European Research Council (ERC Advanced grant 227897) is gratefully acknowledged.

Abstract

Photocaged compounds are important tools for studying and regulating multiple processes, including biological functions. Reported herein is the use of the Passerini multicomponent reaction for modular preparation of photocaged carboxylic acids. The reaction is compatible with several functionalities and proceeds smoothly both in water and dichloromethane. The choice of aldehyde determines the wavelength used for deprotection and enables formation of orthogonally protected products. The isocyanide component can be used for introduction of reactive tags and photosensitizers, as well as for immobilization on a solid support.

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