Claims
- 1. A process for the preparation of p-substituted o-benzylphenol comprising reacting a p-substituted phenol with a benzylating agent selected from the group consisting of benzyl alcohol, benzyl chloride, dibenzyl ether and p-chlorophenyl benzyl ether in the presence of a condensing agent at a temperature of 100.degree. to 250.degree. C., wherein the condensing agent is a zeolite of the faujasite type.
- 2. The process of claim 1 wherein the faujasite type zeolite is a synthetic zeolite.
- 3. The process of claim 2 wherein the synthetic zeolite is a zeolite X, a zeolite Y or a mixture of zeolite X and zeolite Y.
- 4. The process of claim 1 wherein the faujasite type zeolite is employed in an amount of 1 to 50% by weight, relative to the weight of the phenol employed.
- 5. The process of claim 1 wherein the faujasite type zeolite is employed in an amount of 5 to 40% by weight, relative to the weight of the phenol employed.
- 6. The process of claim 1, wherein the p-substituted o-benzylphenol corresponds to the formula ##STR4## in which R.sup.1 is halogen, C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy or C.sub.1 -C.sub.12 -alkylmercapto, and
- R.sup.2 is hydrogen, halogen, the cyano group, C.sub.1 -C.sub.4 -alkyl or a carb-C.sub.1 -C.sub.4 -alkoxy group,
- the starting p-substituted phenol corresponds to the formula ##STR5## in which R.sup.1 has the meaning given under formula (I), and the benzylating agent corresponds to the formula ##STR6## in which R.sup.2 has the meaning given under formula (I) and R.sup.3 is halogen, the hydroxyl group, C.sub.1 -C.sub.4 -alkoxy, aralkoxy or aryloxy.
- 7. A process according to claim 1, wherein the temperature is 125.degree. to 220.degree. C.
- 8. A process according to claim 1, wherein the temperature is 150.degree. to 200.degree. C.
- 9. A process according to claim 1, wherein the benzylating agent is selected from the group consisting of benzyl alcohol, p-chlorophenyl benzyl ether and dibenzylether.
- 10. A process according to claim 1, wherein the benzylating agent is benzyl alcohol.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3700917 |
Jan 1987 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 07/143,544, filed Jan. 13, 1988, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4514577 |
Filbery et al. |
Apr 1985 |
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Foreign Referenced Citations (1)
Number |
Date |
Country |
6407636 |
Jul 1966 |
NLX |
Continuations (1)
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Number |
Date |
Country |
Parent |
143544 |
Jan 1988 |
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