An efficient and convenient synthesis of benzoxazole/benzothiazole-substituted esters in a one-pot strategy is reported. In this investigation, selective construction C-N C-S bonds via simple addition performed. Thus, using substituted 2-aminophenols/2-aminobenzenethiols, TMTD (tetramethylthiuram disulfide) α,β-unsaturated as starting substrates, can be selectively constructed by means the Mich...