A novel tetramer copper(I) complex containing diallylphosphine ligands: Synthesis, characterization and catalytic application in A3-coupling (Aldehyde-Amine-Alkyne) reactions
作者:Jennifer Rosales、Juan M. Garcia、Edward Ávila、Teresa González、David Santiago Coll、Edgar Ocando-Mavárez
DOI:10.1016/j.ica.2017.07.038
日期:2017.10
observed dynamic equilibrium in solution. The use of copper(I) complex 2 as catalyst for the synthesis of propargylamines via A3-coupling reactions has been tested. Complex 2 is capable of promoting A3-coupling reactions of both aromatic and aliphatic aldehydes with cyclic secondary amines and phenylacetylene. The reaction proceeds under mild condition and absence of solvent.
Silver(<scp>i</scp>)-mediated highly enantioselective synthesis of axially chiral allenes under thermal and microwave-assisted conditions
作者:Vanessa Kar-Yan Lo、Cong-Ying Zhou、Man-Kin Wong、Chi-Ming Che
DOI:10.1039/b914516h
日期:——
Silver(I) salts mediated stereospecifictransformation of opticallyactive propargylamines to axially chiral allenes with excellent enantioselectivities (17 examples with 96-99% ee; one substrate with 91% ee) without subsequent racemization.
Two original macrocyclic silver(I)(pyridine-containing ligand) complexes [Ag(I)(Pc-L)] were synthesized and characterized. Their ability to catalyze the coupling among aldehydes, terminal alkynes and amines (A3-coupling) was demonstrated. The reaction could be performed under conventional as well as dielectric heating. The catalysts were effective in both cases, but dielectric heating allowed a lower