# Biomimetic sulfur-catalyzed carbonyl transfer enables the carbonylative difunctionalization of unactivated alkenes

## TL;DR

Scientists created a new chemical method inspired by biology to transform tough-to-react molecules using sulfur compounds.

## Contribution

A biomimetic sulfur-catalyzed strategy for carbonyl transfer and activation of unactivated trifluoromethyl aromatics is introduced.

## Key findings

- Sulfur compounds catalyze the transfer of acyl groups and activate inert C–F bonds.
- The method enables efficient synthesis of fluorine-modified carboxylic acid derivatives.
- The approach extends fluoroalkyl radical precursors to unactivated trifluoromethylarenes.

## Abstract

Novel organic synthesis platforms inspired by enzyme-promoted biochemical transformations often demonstrate unexpected efficacy in solving challenging problems in organic synthesis. Drawing inspiration from the acyl transfer process catalyzed by coenzyme A (CoA) and acetyl–CoA in living organisms, we have developed a biomimetic acyl transfer strategy catalyzed by organic sulfur compounds. By activating the inert C–F bonds of trifluoromethyl aromatics, a multi-component radical relay strategy enables the efficient construction of fluorine-modified γ-aryl carboxylic acid derivatives. Sulfur compounds serve dual roles in the catalytic cycle, acting as electron-donor catalysts to activate inert C–F bonds and forming thioester intermediates to transfer acyl groups to nucleophiles. Building upon this platform, we have for the first time extended the scope of fluoroalkyl carbon radical precursors in cascade carbonylation of alkenes from reactive species to unactivated trifluoromethylarenes.

We have developed a biomimetic, sulfur-catalyzed carbonyl transfer strategy for the activation and transformation of aryl trifluoromethyl groups.