Friedel-crafts preparation of aromatic ketones

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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534588, 534593, 568322, 568323, 568325, 568332, C07C10706, C07C 49813, C07C 4983, C07C 4984

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active

048145084

ABSTRACT:
Aromatic carbonyl compounds, in particular arylene ether ketones, are prepared by reacting an appropriate reagent system in the presence of free Lewis acid and a complex between a Lewis acid, for example, aluminum trichloride, and a Lewis base, for example, N,N-dimethylformamide, and, optionally, a diluent, such as methylene chloride. The process is particularly advantageous for the preparation of substantially or all para-linked arylene ether ketones as the presence of the Lewis acid/Lewis base complex markedly reduces alkylation and ensures the substantial absence of ortho substitution.

REFERENCES:
patent: 1874580 (1932-08-01), Nawiasky
patent: 2773903 (1956-12-01), Hardy et al.
patent: 2853522 (1958-09-01), Dayan et al.
patent: 2853523 (1958-09-01), von Glahn et al.
patent: 2861104 (1958-11-01), von Glahn et al.
patent: 2861105 (1958-11-01), Stanley et al.
patent: 3282989 (1966-11-01), Renckoff et al.
Freitag, Chem. Abs. 95:43910a.
Windholz, Chem. Abs. 73:120343t.
Braun, III, Chem. Abs. 50:4229i.
Braun, IV, Chem. Abs. 52:14691f.
Moshehisnkaya, Chem. Abs. 79:104903u.
Olah, "Friedel-Crafts and Related Reactions", vol. I, Interscience Publishers, Inc., N.Y., pp. 91 to 109, 120, 122, 123 and 212 to 304 (1963).

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