piperidines has been researched along with benzyne* in 2 studies
2 other study(ies) available for piperidines and benzyne
| Article | Year |
|---|---|
A single step approach to piperidines via Ni-catalyzed β-carbon elimination.
An easy and expeditious route to substituted piperidines is described. A Ni-phosphine complex was used as catalyst for [4 + 2] cycloaddition of 3-azetidinone and alkynes. The reaction has broad substrate scope and affords piperidines in excellent yields and excellent regioselectivity. In the reaction of an enantiopure azetidinone, complete retention of stereochemistry was observed. Topics: Benzene Derivatives; Catalysis; Cyclization; Mesylates; Molecular Structure; Nickel; Organosilicon Compounds; Piperidines; Stereoisomerism | 2012 |
The benzyne aza-Claisen reaction.
Adding an aryne to a tertiary allylamine affords o-allylaniline products of an aza-Claisen rearrangement. The aryne simultaneously provides the pi component for the rearrangement and the quaternization event that lowers the activation energy for the sigmatropic shift. The reaction was applied to the synthesis of medium-ring benzannulated amines (see scheme). Topics: Amines; Aza Compounds; Benzene Derivatives; Catalysis; Piperidines | 2009 |