Claims
- 1. A process for the preparation of o-acylphenols and p-acylphenols of the formula ##STR4## where the acyl radical is in the o-position and/or p-position to the hydroxyl group, and R is an aliphatic or cycloaliphatic radical, wherein phenol is reacted with an acid halide of the formula ##STR5## where R has the above meanings and X is halogen, in an amount of from 0.5 to 1.5 moles permole of phenol, in the presence of from 0.5 to 1.5 moles of aluminum chloride per mole of phenol, and of a halobenzene as the solvent, initially at from 15.degree. to 55.degree. C. and then at from 55.degree. to 200.degree. C.
- 2. The process of claim 1, wherein the reaction is carried out using from 0.95 to 1.1 mole of starting material II per mole of phenol.
- 3. The process of claim 1, wherein the reaction is carried out using from 100 to 10,000 percent by weight of solvent, based on phenol.
- 4. The process of claim 1, wherein the first stage of the reaction is carried out at from 40.degree. to 51.degree. C.
- 5. The process of claim 1, wherein the second stage of the reaction is carried out at from 56.degree. to 200.degree. C.
- 6. The process of claim 1, wherein the second stage of the reaction is carried out at from 80.degree. to 130.degree. C.
- 7. The process of claim 4, wherein the second stage of the reaction is carried out at from 80.degree. to 130.degree. C.
- 8. The process of claim 1, wherein R is alkyl of 1 to 6 carbon atoms and wherein X is chlorine.
- 9. The process of claim 1, wherein R is cycloalkyl of 5 to 8 carbon atoms and wherein X is chlorine.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3108076 |
Mar 1981 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 344,014, filed Jan. 29, 1982 now abandoned.
US Referenced Citations (9)
Continuations (1)
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Number |
Date |
Country |
Parent |
344014 |
Jan 1982 |
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