Add time:08/13/2019         Source:sciencedirect.com

The reactivity of the allyl stannanes can be inverted by changing the oxidation state of the catalyst from Pd(II) to Pd(0). Whereas with Pd(II) an anti nucleophilic attack of the allyl stannane on the alkyne takes place, the reaction with Pd(0) proceeds by oxidative addition to form (η3-allyl)palladium complexes leading to a formal syn addition to the alkyne. This mechanistic proposal is supported by DFT calculations.

We also recommend Trading Suppliers and Manufacturers of DiMethyl allyl(propargyl)Malonate (cas 107428-06-8). Pls Click Website Link as below: cas 107428-06-8 suppliers