# Synergizing Electrons and Photons in Motion: Continuous-Flow Implementation in Electro- and Photocatalyzed C–H Functionalization

## TL;DR

This paper explores how continuous-flow technology improves the efficiency and sustainability of C–H functionalization reactions using electro- and photocatalysis.

## Contribution

The novel contribution is the integration of electro- and photocatalysis in continuous-flow systems for C–H functionalization.

## Key findings

- Continuous-flow systems enable better control of temperature and residence time in C–H functionalization.
- The combination of electro- and photocatalysis in flow reactors allows for more sustainable and scalable chemical transformations.

## Abstract

Continuous-flow technology
has emerged as a powerful
platform for
resource-economical molecular synthesis, thereby addressing key limitations
of conventional batch processes through unparalleled control of temperature
and residence time as well as improved heat and mass transfer. Especially,
the application of flow chemistry to CH functionalization
bears unique potential. By leveraging otherwise inert CH bonds
as latent functional groups, the step- and atom-economical access
to value-added molecular architectures from abundant and readily available
starting materials is facilitated. Thereby, flow reactor technology
enables superior heat and mass transfer, accelerated kinetics, and
direct scalability, promoting operationally simple, safe, and sustainable
transformations. Continuous-flow has proven enabling in photo- and
electrocatalysis as well as their synergistic merger in photoelectrochemical
catalysis. In addition, these strategies unlock the use of earth-abundant
catalysts and renewable solvents, while streamlining molecular synthesis.