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. ... A catalytic amount of trimethylsilyl triflate (TMSOTf) remarkably facilitates the selective conjugate addition of a variety of silyl phosphites, prepared in situ from dialkyl phosphites and N,O-bis(trimethylsilyl )acetamide, to cyclic enones giving 1,4-adducts in high yields. ... A catalytic amount of ...