Phenol → (1,1'-Biphenyl)-2-ol

Beteiligte Stoffe

Reaktionsschritte

The alkylation of Example 1A is repeated except the reaction is run at 140° C. The product contains 3.2 percent cyclohexene, 23.3 percent phenol, 13.7 cyclohexylphenyl ether, 57.7 percent ortho cyclohexyl phenol, and about 0.7 percent di-adduct. This product is then distilled in a POPE™ 2-inch wiped film still at 170° C., 1.7 psig (0.11 atm.) and 500 rpm (revolutions per minute). The heavies stream (distillation product which is not volatilized off) has about 0.7 percent cyclohexene, 44.3 percent phenol, 15.5 percent cyclohexylphenyl ether, 38 percent ortho cyclohexylphenol and 0.2 percent di-adduct. The heavies stream is reacted under the same conditions as Example 1A, except the reaction temperature is about 235° C. resulting in a product having about 0.05 percent cyclohexene, about 42.7 percent phenol, about 0.05 percent cyclohexylphenyl ether, about 53 percent orthocyclohexyphenol and about 0.4 percent di-adduct. This product from the heavies stream is then reacted under the same conditions as described by Example 1B. Example 1B resulted in essentially the same conversion and selectivity as described in Example 1B.

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