Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Phosphines 2 and 3 supplemented with strongly basic and hydrophilic guanidinium functions were prepared for the first time. In combination with palladium acetate these ligands form active catalysts that promote an aqueous Heck reaction. ... Cookies are used by this site. To ...