Thiophen removal from benzene with aluminium chloride
Abstract
Anhydrous aluminium chloride removes thiophen from boiling benzene as tetrahydrothiophen, tetrahydro-3-phenylthiophen, and hydrogenated derivatives of tetrahydro-3-naphthylthiophen. A minute proportion (ca. 0·04%) of the benzene is converted, inter alia, into biphenyl, p-terphenyl, homologous alkylbenzenes, naphthalene and its hydrogenation products, and involatile pitch.