Reactions of phenols and alcohols over thoria: Mechanism of ether formation

S, Karuppannasamy and K, Narayanan and C N, Pillai (1980) Reactions of phenols and alcohols over thoria: Mechanism of ether formation. Journal of Catalysis , 66 (2). pp. 281-289.

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Abstract

The dehydration of phenols and alkylation of phenols by alcohols over thoria were studied at 400–500 °C and atmospheric pressure. Phenol and cresols, when dehydrated gave diaryl ethers as main products. With para-substituted phenols such as p-methoxy, p-t-butyl, p-chloro, and p-nitrophenol no ether formation was noticed. All the reactions were accompanied by considerable amount of coke formation. Alkylation of phenols by alcohols gave a mixture of O- and C-alkylated products under the same reaction conditions. O-alkylation and C-alkylation are parallel reactions. The mechanistic aspects of the reactions are discussed.

Item Type:	Article
Subjects:	Science > Chemistry
ID Code:	875
Deposited By:	Prof Balasubramanian Viswanathan
Deposited On:	11 Jun 2007 16:31
Last Modified:	11 Jun 2007 16:31

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