Recommanded Product: 1779-49-3In 2019 ,《Chiral Bronsted Acid Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes and Asymmetric Hydroamination of Dienes》 appeared in Angewandte Chemie, International Edition. The author of the article were Lin, Jin-Shun; Li, Tao-Tao; Jiao, Guan-Yuan; Gu, Qiang-Shuai; Cheng, Jiang-Tao; Lv, Ling; Liu, Xin-Yuan. The article conveys some information:
The first highly efficient and practical chiral Bronsted acid catalyzed dynamic kinetic asym. hydroamination (DyKAH) of racemic allenes and asym. hydroamination of unactivated dienes with both high E/Z selectivity and enantioselectivity are described herein. The transformation proceeds through a new catalytic asym. model involving a highly reactive π-allylic carbocationic intermediate, generated from racemic allenes or dienes through a proton transfer mediated by an activating/directing thiourea group. This method affords expedient access to structurally diverse enantioenriched, potentially bioactive alkenyl-containing aza-heterocycles and bicyclic aza-heterocycles. In the part of experimental materials, we found many familiar compounds, such as Methyltriphenylphosphonium bromide(cas: 1779-49-3Recommanded Product: 1779-49-3)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Recommanded Product: 1779-49-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary