Process for the preparation of 2-alkyl-4-acyl-6-tert-butylphenol

Details Process for the preparation of 2-alkyl-4-acyl-6-tert-butylphenol Process for the preparation of 2-alkyl-4-acyl-6-tert-butylphenol

1991-03-26

1992-06-30

Reamer, James H.

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

Organic compounds

Oxygen containing

568324, C07C 4545

Patent

active

051264870

ABSTRACT:
The subject invention relates to a process for the preparation of 2-alkyl-4-acyl-6-tert-butylphenol compound having the chemical structure: ##STR1## wherein -R is an aliphatic group having a terminally unsaturated moiety selected from --C.tbd.CH and --CH.dbd.C.dbd.CH.sub.2, and R' is selected from saturated, straight, branched or cyclic alkyl having from 1 to about 10 carbon atoms; the 2-alkyl-4-acyl-6-tert-butylphenol compound being produced in a reaction mixture comprising the corresponding 2-alkyl-6-tert-butylphenol: ##STR2## the corresponding carboxylic acid: RCOOH, and trifluoroacetic anhydride.

REFERENCES:
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patent: 4849428 (1989-07-01), Dobson et al.
patent: 4982006 (1991-01-01), Hudec
Tedder, J. M., "The Use of Trifluoroacetic Anhydride and Related Compounds in Organic Synthesis", Chemical Reviews, vol. 55 (1955), pp. 787-827.
Galli, C., "Acylation of Arenes and Heteroarenes With In Situ Generated Acyl Trifluoroacetates", Synthesis, Apr. 1979, pp. 303-304.
Nishinaga, A., T. Shimizu, Y. Toyoda & T. Matsuura, "Oxygenation of 2,6-Di-Tert-Butylphenols Bearing an Electron-Withdrawing Group in the 4-Position", Journal of Organic Chemistry, vol. 47 (1982), pp. 2278-2285.

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