methanol; sodium t-butanolate; bis[2-(diphenylphosphino)phenyl] ether; copper(l) chloride in tetrahydrofuran T=20°C; 1.5 h;

1: 4,8-dimethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,6,2-dioxazaborocane With copper(l) chloride in dichloromethane 0.166667 h; Inert atmosphere; 2: ethyl acrylate in methanol; dichloromethane T=0 - 20°C; 18 h; Inert atmosphere;

potassium acetate; copper(l) chloride; lithium chloride in N,N-dimethyl-formamide (N2); addn. of DMF to a mixt. of CuCl and LiCl, stirring for 1 h at roomtemp., addn. of boron compd., CH3COOK and ester, stirring at room temp. for 16 h, addn. of water; extn. with benzene, washing with water, drying with MgSO4, column chromy(SiO2);

Pd2(μ-C6H4PPh2)2(μ-C9H7NPPh2)(μ-O2CCH3); water; caesium carbonate in tetrahydrofuran; methanol Suzuki coupling; 24 h; RefluxInert atmosphere;

Pd2(μ-C6H4PPh2)2(μ-C9H7NPPh2)(μ-O2CCH3); water; caesium carbonate in tetrahydrofuran; methanol Suzuki coupling; 24 h; RefluxInert atmosphere;