triethylamine in hexane T=0 - 20°C;

alkaline solution

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; copper(I) thiophene-2-carboxylate; trifuran-2-yl-phosphane in tetrahydrofuran T=50°C; 18 h;

Pd2(dba)3*CHCl3/tris(2-furyl)phosphine in tetrahydrofuran addn. of 1.6 equiv. of C4H3SCOOCu to the reaction of ClCH2COSC6H4CH3 (1equiv.) with (C10H7)B(OH)2 (1 equiv.) in THF in presence of 1percent Pd2(dba)3*CHCl3/(tris-2-furylphosphine), holding for 18 h at 50°C;