Process for the preparation of bisarylalkyl ethers
AssigneeHoechst Celanese Corporation
InventorsMohammad Aslam, Brad L. Smith, George Kvakovszky
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Abstract
A process for preparing a substituted styrene by reacting a bisarylalkyl ether in the presence of an acid catalyst is disclosed. The process is preferably used for the preparation of 4-acetoxystyrene from 4,4'-(oxydiethylidene)bisphenol diacetate and 4-methoxystyrene from 4,4'-(oxydiethylidene)bisphenol dimethyl ether. A process for preparing a bisarylalkyl ether by reacting a corresponding arylalkanol in the presence of an acid catalyst is also disclosed.
Claims14
A process, comprising the steps of:
- contacting an arylalkanol of the formula ##STR12## with an acid catalyst;
- and heating the arylalkanol catalyst mixture to form a bisarylalkyl ether of the formula ##STR13## wherein R.sub.1 is ##STR14## --O--CH.sub.3, --O--CH.sub.2 --CH.sub.3, halogen or NO.sub.2 ;
- and R.sub.2, R3, R4 and R.sub.5 are independently hydrogen, halogen or C.sub.1 -C.sub.4 alkyl.
A process for producing a bisarylalkyl ether of the formula ##STR15## comprising the steps of:
- mixing an arylalkanol of the formula ##STR16## with an acid catalyst;
- and subjecting the mixture to a temperature of about 80.degree. C. to about 120.degree. C.
- wherein R.sub.1 is ##STR17## --O--CH.sub.3, --O--CH.sub.2 --CH.sub.3, halogen or NO;
- and R.sub.2 ;
- R3, R4 and R.sub.5 are independently hydrogen, halogen or C.sub.1 -C.sub.4 alkyl.
A method of preparing a bisarylalkyl ether of the formula ##STR18## comprising the steps of:
- interacting an arylalkanol of the formula ##STR19## with an acid catalyst;
- and heating the mixture to a temperature which is sufficient to convert the arylalkanol to the bisarylalkyl ether and water,
- wherein R.sub.1 is ##STR20## --O--CH.sub.3, --O--CH.sub.2 --CH.sub.3, halogen or NO.sub.2 ;
- and R.sub.2, R3, R4 and R.sub.5 are independently hydrogen, halogen or C.sub.1 -C.sub.4 alkyl.
Dependencies are inferred from the claim text.