Preparation of aromatic iodine compounds

Details Preparation of aromatic iodine compounds Preparation of aromatic iodine compounds

1986-07-07

1987-12-29

Moyer, Donald B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570206, C07C 1712

Patent

active

047162546

ABSTRACT:
Monohalobenzene compounds are iodinated with an iodination reagent selected from the group consisting of (i) iodine monochloride and (ii) I.sub.2 /Cl.sub.2 mixtures having a mol ratio of about 1:3-5:1, in the presence of a catalyst selected from the group consisting of MoCl.sub.5, FeCl.sub.3, lanthanide chlorides and mixtures thereof. Preferably one of chlorobenzene and fluorobenzene is at least partially converted to at least one of para-iodochlorobenzene and para-iodofluorobenzene. Various other aromatic compounds, preferably di- and trichlorobenzene, xylenes, nitrobenzene and ethyl benzoate, are iodinated with an iodination reagent selected from the group consisting of (i) iodine monochloride and (ii) I.sub.2 /Cl.sub.2 mixtures having a mol ratio of about 1:3-5:1, in the presence of a catalyst comprising FeCl.sub.3 and, optionally, a lanthanide chloride.

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Beilsteins Handbuch der Organischen Chemie, Drittes Ergaenzungswerk, Fuenfter Band, 1964, pp. 578-579.

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