formic acid; triethylamine; tris(dibenzylideneacetone)dipalladium(0) chloroform complex; tributylphosphine in tetrahydrofuran 4 h; Heating;

ammonium formate; Pd(dibenzylidene acetone)3*CHCl3; tributylphosphine in 1,4-dioxane 2 h; Heating;