Results The isocyanides used in this study were synthesized from the corresponding amines according to the general procedure shown in Scheme I. The amines la-d and If were N- formylated with an excess of ethyl formate. 16 The anilines le, lg, li, 11, and lo were treated with formic acid/acetic anhydride to give the N-formylated products. Anilines lb, lj, lk, lm, In, and lp were formylated with formic acid in toluene." Isocyanides 3a-d were synthesized ...
