86926-16-1Relevant academic research and scientific papers
Cu2O-catalyzed C–S coupling of quaternary ammonium salts and sodium alkane-/arene-sulfinates
Chen, Hongyi,Huang, Youming,Zeng, Qingle,Zheng, Wenting
supporting information, (2020/08/28)
A new protocol for the synthesis of (enantioenriched) benzylic sulfones via the Cu2O-catalyzed C–S bond cross coupling of alkane-/arene-sulfinates and (enantioenriched) benzylic quaternary ammonium salts has been developed. The product benzylic sulfones were obtained in good to high yields (75–96%). Chiral arylmethyl sulfones with high enantiomeric excess (90–94% ee) were also synthesized in the presence of Cu2O and 1,1′-bis-(diphenylphosphino)ferrocene (dppf).
Palladium-Catalyzed Highly Regioselective Aromatic Substitution of Benzylic Ammonium Salts with Amines
Xu, Ya-Nan,Zhu, Meng-Zeng,Lin, Yu-Kun,Tian, Shi-Kai
supporting information, p. 7169 - 7173 (2019/09/13)
An unprecedented aromatic substitution reaction of benzylic ammonium salts has been developed through palladium-catalyzed C-N bond cleavage. A range of primary and secondary amines participated in a palladium-catalyzed aromatic substitution reaction of benzylic ammonium salts, delivering sterically hindered aromatic amines in moderate to excellent yields with extremely high regioselectivity. Preliminary mechanistic studies permitted successful identification of Π-benzylpalladium complexes and Γ-vinyl allylic amines as key intermediates. This study paves the way for the use of benzylic ammonium salts in the aromatic substitution reactions.
Metallation of benzylic amines via amine-borane complexes
Ebden, Mark R.,Simpkins, Nigel S.,Fox, David N.A.
, p. 12923 - 12952 (2007/10/03)
Formation of borane complexes of N,N-dimethylbenzylamine, N,N- dimethyl(1-naphthyl)methylamine, N,N-dimethyl(2-naphthyl)methylamine, N- methyltetrahydroisoquinoline and N-methylisoindoline facilitates regioselective metallation of these systems using BuLi, giving intermediate benzylic anions which react with a range of electrophiles to give products in good yield.
