Liquid phase alkylation of anisole and phenol catalyzed by niobium phosphate

Journal of the Brazilian Chemical Society

Cynthia C. M. Pereira²  Marcus H. C. De La Cruz¹  Elizabeth R. Lachter² 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Química Rio de Janeiro RJ ,Brazil

关键词: alkylation;    niobium phosphate;    acid catalysis;    phenol;   

DOI  :  10.1590/S0103-50532010000200025

来源: SciELO

【 摘 要 】

The catalytic activity of niobium phosphate was evaluated in the liquid phase alkylation reaction of anisole with 1-dodecene, 1- octene, 2-octanol and 1-octen-3-ol and in the reaction of phenol with 1-octen-3-ol. Best results were achieved in the alkylation of anisole and phenol with 1-octen-3-ol that produced mainly monoalkylate products. In the reaction with phenol the major products formed were octenylphenols (C-alkylation) and phenyl-octenyl ether (O-alkylates). The reaction favors the formation of C-alkylates over O-alkylates.

【 授权许可】

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