methanol; aluminum oxide; ammonia in chloroform

1: 5-bromo-1,3-thiazole With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 1.5 h; 2: tributyltin chloride in tetrahydrofuran; hexane T=-78 - 20°C; 3.5 h;

1: 2-trimethylsilanyl-thiazole With n-butyllithium in diethyl ether; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: tributyltin chloride in diethyl ether; hexane T=20°C; 1 h;