A nickel‐catalyzed asymmetric diarylation reaction of vinylarenes enables the preparation of chiral α,α,β‐triarylated ethane scaffolds, which exist in a number of biologically active molecules. The use of reducing conditions with arylbromides as coupling partners obviates the need for stoichiometric organometallic reagents and tolerates a broad range of functional groups. The application of an N‐oxyl
Highly efficient iodine-catalyzed hydroarylation of arenes with styrenes
作者:Cheng-Ming Chu、Wan-Ju Huang、Ju-Tsung Liu、Ching-Fa Yao
DOI:10.1016/j.tetlet.2007.07.178
日期:2007.9
Iodine mediates the hydroarylation of styrenes with arenes and heteroarenes to afford 1,1-diarylalkanes in good to high yields. Details regarding the substrate scope and selectivity of this hydroarylation reaction are discussed.
Palladium-Catalyzed Oxidative Intermolecular Difunctionalization of Terminal Alkenes with Organostannanes and Molecular Oxygen
作者:Kaveri Balan Urkalan、Matthew S. Sigman
DOI:10.1002/anie.200900218
日期:2009.4.14
palladium complex catalyzes the title transformations, which are thought to proceed via a π‐allyl or π‐benzyl intermediate. The regioselectivity of the reaction (1,2‐ or 1,1‐difunctionalization) depends on the type of terminal double bond (conjugated or nonconjugated) in the substrate (see scheme) and appears to be controlled by the relative rates of β‐hydride elimination and transmetalation. DMA=dimethylacetamide
Aluminum Chloride Catalyzed Friedel-Crafts Reaction of Anisole with Epoxide Accompanying Isomerization
作者:Masashi Inoue、Toshio Sugita、Katsuhiko Ichikawa
DOI:10.1246/bcsj.51.174
日期:1978.1
The reaction of anisole with propylene oxide by aluminumchloride has been studied in various kinds of solvents. While the normal Friedel-Crafts reaction yielded 2-(methoxyphenyl)-1-propanols, 1,1-bis(methoxyphenyl)-propanes were also formed in this reaction; these were not obtained by the subsequent reaction of mono(methoxyphenyl) products with another anisole. The yields of 1,1-bis(methoxyphenyl)propanes
Mo-catalyzed Friedel-Crafts alkylation using alkenes under mild condition
作者:Nobukazu Taniguchi、Kenji Kitayama
DOI:10.1016/j.tetlet.2023.154729
日期:2023.10
Mo-catalyzed hydroarylation of alkenes can be achieved at roomtemperature. The procedure can perform by using electron rich arenes, and the corresponding product is obtained regioselectively as a mixture of para- and ortho-isomers in good yield. Both aryl alkenes and aliphatic alkenes are available in the procedure. On the other hand, a reaction of allylic acetates gives the corresponding allyl arenes