TY - GEN AU - Moron,M AU - Sundström,G AU - Wachtmeister,C A TI - Polycholorinated biphenyls. VI. 2,3,7,8-tetrachlorodibenzofuran, a critical byproduct in the synthesis of 2,2',4,4',5,5'-hexachlorobiphenyl by the Ullmann reaction SN - 0001-5393 PY - 1974///0411 KW - Benzofurans KW - chemical synthesis KW - Chromatography, Gas KW - Polychlorinated Biphenyls N1 - Publication Type: Journal Article UR - https://doi.org/10.3891/acta.chem.scand.27-3121 ER -