Water → Phenol, o-(alpha,alpha-dimethylbenzyl)-

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Reaction Steps

A stock solution containing 6 wt% DCP, 15 wt% cumene, 1 wt% water and 50 ppm sulfuric acid with the balance composed of equimolar phenol and acetone was distributed among several melting point capillary tubes which were subsequently sealed and heated for various lengths of time in a stirred oil bath. The tubes were then quickly cooled by immersion in an ice bath and the contents were analyzed by gas chromatography. The amount of AMS formed increased with time up to a maximum yield and then declined as increased amounts of AMS dimers and cumylphenol were formed. Table IV records the maximum AMS yield obtained at each temperature as well as the heating time required to reach that yield. It is clear from the data of Table IV that best yields of AMS are obtained at temperatures over 100° C., e.g., 120° to 150° C.

Provenance & Evidence