Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1988-03-21
1989-03-21
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
534588, 534593, 568322, 568323, 568325, 568332, C07C10706, C07C 49813, C07C 4983, C07C 4984
Patent
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.
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Gors Heinrich C.
Horner Patrick J.
Jansons Viktors
Burkard Herbert G.
Chao Yuan
Higel Floyd D.
Raychem Corporation
Rice Edith A.
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