Reductive Dechlorination of Aryl Chlorides Using Hantzsch Ester
Abstract
Herein, we report a transition-metal-free reductive dechlorination of aryl and alkyl chlorides using Hantzsch ester as the sole reductant. Operating under 365 nm UV irradiation or at 100 °C temperature, this method represents a significant simplification without the need for additional catalysts or inert protection. It exhibits excellent chemoselectivity, with reduction-sensitive functional groups, such as esters, aldehydes, and ketones, left completely intact. Mechanistic studies and DFT calculations reveal divergent mechanisms: a concerted S N Ar pathway under thermal conditions while a single-electron transfer (SET) pathway under photochemical conditions.
Fields of Study & Subjects
Environmental remediation with nanomaterials
Catalytic Cross-Coupling Reactions
Advanced Synthetic Organic Chemistry
Publication details
- Journal / source
- Organic Letters
- Publisher
- American Chemical Society (ACS)
- Volume
- 28
- Issue
- 26
- Pages
- 8345–8349
- Publication date
- 16 June 2026
- Language
- EN