Preparation of perfluoroalkyl azaarenes with a perfluoroalkyllithium-boron trifluoride system
作者:Hidemitsu Uno、Shin-ichiro Okada、Hitomi Suzuki
DOI:10.1016/s0040-4020(01)86555-8
日期:1991.8
In the presence of boron trifluoride, perfluoroalkyllithiums generated in situ from tbe reaction of n-perfluoroalkyl iodides with methyllithium-lithium bromide smoothly added to a carbon-nitrogen double bond of bicyclic azaarenes and diazines to give the corresponding perfluoroalkylated dihydro heterocycles, which often underwent spontaneous aromatization in air. Perfluoroalkylation occurred preferentially
The Construction of Highly Substituted Piperidines via Dearomative Functionalization Reaction
作者:Miao Hu、Hao Ding、William DeSnoo、Dean J. Tantillo、Zackaria Nairoukh
DOI:10.1002/anie.202315108
日期:2023.12.4
The stepwise dearomative functionalization reaction of pyridines generates highlysubstituted piperidines, featuring diverse functional handles, with excellent site-, regio-, and diastereoselectivity. The origin of the unprecedented selectivities and additional insights into the reaction mechanism are discussed based on combined experimental mechanistic studies and density functional theory computations