ChemInform Abstract The reaction between p-cresol (I) and cyclohexene (II) in the presence of aluminum p-cresolate, molar ratio 3:1:0.1, affords the o-alkylation products (III) and (IV) as the main components along with minor amounts of ethers resulting from alkylation of the hydroxy group. The same reaction between (I), (II) and aluminum p-cresolate, but with a molar ratio of 1:4:0.3, gives the o,o'-dialkyl derivative (IV) as the main product. The reaction between o-cresol (V) and cyclohexene (II) in the presence of aluminum o-cresolate, molar ratio 3:1:0.9, gives the o-alkylation product (VI) as the main component along with minor amounts of m-and p-alkylation products and ethers. The reaction of m-cresol (VII), cyclohexene (II) and aluminum m-cresolate, molar ratio 3:1:0.3, gives a mixture of the o-alkylation products (VIII) and (IX) along with some minor components.

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ChemInform Abstract The reaction between phenol (I) and oct-1-yne (II) in the presence of aluminum phenolate, molar ratio 3:1:0.5, at 130 rc C yields a separable mixture of the desired 2,2-di(hydroxyphenyl)octanes (III) and (IV) along with the chromane (V) and the chromene (VI). At temperatures above 160 rc C the additional formation of the octylphenols (VII) and (VIII) is observed. The mechanisms of the formation of the products (III)-(VIII) are discussed.

Reaktion von Phenol mit Cyclohexen in Gegenwart von Aluminiumphenolat.

Reaction of phenol (I) with phenylacetylene (II) in the presence of aluminum phenoxide gives the products (III) ‐ (VIII) depending on the reaction conditions and the molar ratio.