In order to assess the robustness and reproducibility of the newly established protocol, a reaction condition-based sensitivity assessment was performed (Fig. ) . Interestingly, the reaction was shown to be remarkably tolerable towards perturbations in the temperature (T), concentration (c), oxygen level and light intensity (I), with only a slight decrease in yield observed when H2O was added to the reaction mixture. Additionally, the photocatalysed reaction could be performed on 4.0 mmol scale, showing a relatively small erosion in isolated yield compared to the standard reaction (53% vs 63%).