Copper-Catalyzed Tandem Asymmetric Borylation of β-Chloroalkyl Aryl Ketones and Related Compounds
作者:Quanbin Jiang、Tenglong Guo、Zhengkun Yu
DOI:10.1002/cctc.201402823
日期:2015.2
The Cu‐catalyzed, one‐pot tandem (asymmetric) borylation of β‐chloroalkyl aryl ketones via the in situ generated acyclic enones with bis(pinacolato)diboron was achieved efficiently to reach up to 97 % yield and 99 % enantioselectivity for the formal sp3 CCl borylation products. The present methodology provides an efficient alternative route to (chiral) alkylboron compounds.
Decatungstate‐Catalyzed Carbon‐Carbon Bond Formation Between Furfural and Electron‐Deficient Olefins
作者:Emil Krogh Nielsen、Kassem El‐Chami、Clara Mondrup de Lichtenberg、Robert Madsen
DOI:10.1002/ejoc.202400109
日期:2024.4.22
Functionalization of furfural can be achieved by photocatalytic C−H activation of the aldehyde and coupling to electron-deficient olefins. With (Bu4N)4W10O32 as the photocatalyst, furfural can be added to benzylidene malononitriles, acrylates, itaconic anhydride, maleic anhydride, 2-vinylpyridine and phenyl vinyl sulfone to form the corresponding furanyl ketones in moderate-to-good yields.