Synthesis 2021; 53(07): 1307-1314
DOI: 10.1055/s-0040-1705964
paper

Decagram Synthesis of Dimethyl 1,4-Cubanedicarboxylate Using Continuous-Flow Photochemistry

Diego E. Collin
,
Edward H. Jackman
,
Nicolas Jouandon
,
Wei Sun
,
Mark E. Light
,
David C. Harrowven
,
Bruno Linclau
School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK   Email: bruno.linclau@soton.ac.uk
› Author Affiliations
The authors acknowledge financial support from the ERDF (LabFact: InterReg V project 121) and EPSRC (Photo-Electro Programme Grant EP/P013341/1, and EP/K039466/1).


Abstract

The highly strained cubane system is of great interest as a scaffold and rigid linker in both pharmaceutical and materials chemistry. A straightforward approach is reported for the scale-up of a [2+2] photocycloaddition step using convenient home-made flow photoreactors to access dimethyl 1,4-cubanedicarboxylate on decagram-scale in 33–40% yield over 8 steps. The process is demonstrated on 3.4 g·h–1 input with 30 minutes residence time, enabling to reduce the process time and to avoid the use of batch photoreactors. Completion of the characterisation of the photocycloadduct and its hydrates is reported.

Supporting Information



Publication History

Received: 31 August 2020

Accepted after revision: 28 September 2020

Article published online:
04 November 2020

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