Browsing by Author "Lin, Yung-Huei"

Now showing 1 - 2 of 2

Nickel-catalysed para-CH activation of pyridine with switchable regioselective hydroheteroarylation of allylarenes
(2015-01-01)
Lee, Wei-Chih
;
Chen, Chien-Hung
;
Liu, Cheng-Yuan
;
Yu, Ming-Shiuan
;
Lin, Yung-Huei
para-CH activation of pyridine with allylbenzene is described by Ni/Al cooperative catalysis in combination with a bulkier NHC ligand and a Lewis acid, leading to linear hydroheteroarylation products. Interestingly, the branch selectivity can be achieved by using the combination of a less sterically hindered amino-NHC ligand and AlMe3 through tandem reaction of facile alkene isomerization followed by a slow CH bond activation process.
Tandem Isomerization and C-H Activation: Regioselective Hydroheteroarylation of Allylarenes
(2013-10-18)
Lee, Wei-Chih
;
Wang, Chun-Han
;
Lin, Yung-Huei
;
Shih, Wei-Chun
;
Ong, Tiow-Gan
The first Ni-promoted prototype reaction based on the tandem C-H activation of heteroarenes with alkene isomerization is demonstrated, leading to the branched hydroheteroarylation products. Simultaneously, the reaction selectivity can be chemically switched to linear adducts through Ni-Al tandem catalysis.