Efficient low-cost preparation of trans-cyclooctenes using a simplified flow setup for photoisomerization

Autor: Hannes Mikula, Christoph Denk, Johannes Fröhlich, Christian Hametner, Dennis Svatunek, Barbara Sohr, Günter Allmaier, Veronika Rosecker
Jazyk: angličtina
Předmět:
Zdroj: Monatshefte für Chemie - Chemical Monthly. 147(3):579-585
ISSN: 0026-9247
DOI: 10.1007/s00706-016-1668-z
Popis: Bioorthogonal ligations have emerged as highly versatile chemical tools for biomedical research. The exceptionally fast reaction between 1,2,4,5-tetrazines and trans-cyclooctenes (TCOs), also known as tetrazine ligation, is frequently used in this regard. Growing numbers of applications for the tetrazine ligation led to an increased demand for TCO compounds, whose commercial availability is still very limited. Reported photochemical procedures for the preparation of TCOs using flow chemistry are straightforward and high yielding but require expensive equipment. Within this contribution, we present the construction and characterization of a low-cost flow photoreactor assembled from readily accessible components. Syntheses of all commonly used trans-cyclooctene derivatives were successfully carried out using the described system. We are convinced that the presented system for photoisomerization will promote access to bioorthogonally reactive TCO derivatives.
Databáze: OpenAIRE