Gold(I)-catalyzed enantioselective [3+2] and [3+3] cycloaddition reactions of propargyl acetals/ketals-Science-Chemical Encyclopedia-lookchem

Gold(I)-catalyzed enantioselective [3+2] and [3+3] cycloaddition reactions of propargyl acetals/ketals
Add time:07/11/2019 Source:sciencedirect.com

An asymmetric gold(I)-catalyzed [3+2] cycloaddition of propargyl acetals/ketals and aldehydes is reported, which proceeds via stepwise migration-fragmentation of acetals/ketals and cycloaddition of the in situ generated gold-carbenoid intermediate. Various functionalized 2,5-dihydrofurans were obtained in good yields and high enantioselectivities. Furthermore, an example of the first gold(I) catalyzed [3+3] cycloaddition of secondary propargyl ketals and nitrones is presented.

We also recommend Trading Suppliers and Manufacturers of PROPARGYL BENZOATE 98 (cas 6750-04-5). Pls Click Website Link as below: cas 6750-04-5 suppliers

Prev:Establishment of a quantitative bioanalytical method for an acetylcholinesterase inhibitor Ethyl 3-(2-(4-fluorophenyl) amino)-4-phenylthiazol-5-yl)-3-oxopropanoate including its physicochemical characterization and in vitro metabolite profiling using Liquid Chromatography-Mass Spectrometry
Next: MAO enzymes inhibitory activity of new benzimidazole derivatives including hydrazone and propargyl side chains)

Encyclopedia