n-butyllithium in tetrahydrofuran; hexane addn. and stirring BuLi in hexane and furan in dry THF at -30°C under N2 (1 h), addn. of HgCl2 at -30°C, stirring at -30°C (1 h), warming to room temp.; addn. of H2O, sepn. of the org. phase, washing with H2O and brine, drying with Na2SO4, evapn., crystn. from aq. acetone;

iodine; potassium iodide T=80°C; 0.5 h;

in chloroform-d1 byproducts: 2-furylacetate; monitoring by NMR;

SCl2 in carbon disulfide 48 h; Ambient temperature;