Related Experiment Video
Updated: Aug 27, 2025
![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Promoting effect of water on light and phenanthroline-diphosphine Cu(I) complex-initiated iodine atom transfer
1State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China. yuwei@lzu.edu.cn.
Abstract:
Water can greatly facilitate the iodine atom transfer cyclisation of 2-allyloxy(or prop-2-yn-1-yloxy)-3-iodo tetrahydropyrans and tetrahydrofurans initiated by phenanthroline-diphosphine Cu(I) complexes under 455 nm light irradiation. Good yields were obtained in a mixture of acetonitrile and water (1 : 4, v/v) or in pure water, whereas no reaction took place in acetonitrile under the otherwise same conditions. The copper complexes are virtually heterogeneous in the water-dominant reaction media, which is believed to be a main reason for the beneficial effect of water.
More Related Videos
12:51A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
Published on: November 14, 2015
12:27Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
Related Concept Videos
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Cycloaddition Reactions: MO Requirements for Photochemical Activation
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration