Regioselectivity of Heck reaction

Thus, the regioselectivity of Heck reactions with unsymmetrical alkenes can be manipulated favorably by appropriate variations of the catalyst cocktail . T e impact of silver(I) and thallium(I) salts [97] on Pd-catalyzed reactions extends beyond just increasing... 

This suggests that I" and AcO" interfere after the reaction of the alkene with [PhPd(dppp)Sp-A mechanism is proposed by Jutand/Amatore, which rationalizes the regioselectivity of Heck reactions performed in DMF (Scheme 19.13) [16b, 3t],... 

SCHEME 19.13 Regioselectivity of Heck reactions with dppp as ligand in DMF. 

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