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1776031 
Journal Article 
ALKYLATION OF PHENOL WITH 1-DODECENE AND DIISOBUTYLENE IN THE PRESENCE OF A CATION EXCHANGER AS THE CATALYST 
Patwardhan, AA; Sharma, MM 
1990 
Yes 
Industrial and Engineering Chemistry Research
ISSN: 0888-5885
EISSN: 1520-5045 
29 
1 
29-34 
WOS:A1990CH41000005 
The alkylation of phenol with 1-dodecene and diisobutylene was carried out in the presence of strong cation-exchange resins such as Amberlyst 15, Amberlyst XN1010, monodisperse K2661, and Filtrol 24 clay. The alkylation of phenol with 1-dodecene was studied in the temperature range 55-120 °C and with diisobutylene in the range 50-100 °C. The catalyst loading was varied from 2.5% to 10% (w/w), and the mole ratio of phenol to the alkylating agent was varied from 1:1 to 4:1 to assess the yield of the dialkylated phenol. The operating conditions were optimized to maximize the yield of dodecylphenol and p-tert-octylphenol. © 1990, American Chemical Society. All rights reserved.