A new bench stable reagent that is easily synthesized and handled is investigated for its use in radical prenylation of diverse organic molecules. It has demonstrated high functional group compatibility and can be used with numerous photocatalytic methods to give prenylated products from aryl iodides, bromides, anilines, thiols and alkyl halides.
Photoredox catalysis on unactivated substrates with strongly reducing iridium photosensitizers
作者:Jong-Hwa Shon、Dooyoung Kim、Manjula D. Rathnayake、Steven Sittel、Jimmie Weaver、Thomas S. Teets
DOI:10.1039/d0sc06306a
日期:——
include hydrodehalogenation, cyclization, intramolecular radical addition, and prenylation via radical-mediated pathways, with optimized conditions that only require the photocatalyst and a sacrificial reductant/hydrogen atom donor. Many of these reactions involve organobromide and organochloride substrates which in the past have had limited utility in photoredoxcatalysis. This work paves the way for
Prenyl Praxis: A Method for Direct Photocatalytic Defluoroprenylation
作者:Sonal Priya、Jimmie D. Weaver
DOI:10.1021/jacs.8b09156
日期:2018.11.28
method that provides access to "hybrid molecules" that possess both the functionality of a prenyl group and fluorinated arenes. This approach involves direct prenyl group transfer under very mild conditions, displays excellent functional group tolerance, and includes relatively short reaction times (<4 h), which is the fastest photocatalytic C-F functionalization developed to date. Additionally, the