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
THP ethers were formed cleanly during photolysis of 3,4dihydro-2H-pyran, an alcohol, and catalytic 1,5-dichloro-9, 10-anthraqui none with use of visible light. The reaction could be conducted under ambient fluorescent lighting or with sunlight as well as in a Rayonet reactor. The scope and mechanism are discussed.
Zeolite‐Catalyzed Environmentally Friendly Tetrahydropyranylation of Alcohols and Phenols
作者:Adrienn Hegedüs、Ilona Vígh、Zoltán Hell
DOI:10.1081/scc-200036596
日期:2004.12.31
A simple and environmentally friendly tetrahydropyranylation of various alcohols and phenols at room temperature was elaborated by using a small pore size zeolite. The material is also suitable for the deprotection but with less efficiency.
Bidentate Ligands by Self-Assembly through Hydrogen Bonding: A General Room Temperature/Ambient Pressure Regioselective Hydroformylation of Terminal Alkenes
room temperature/ambient pressure regioselective hydroformylation of terminalalkenes with low catalyst loadings in good activity. The generality of this catalyst under these conditions was demonstrated for a wide range of structurally diverse alkenes equipped with many important functional groups. Thus, this practical and highly selective hydroformylation protocol, which omits the need for special pressure
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.