Abstract
The synthesis of 4,4‘-bis(butanoxymethyl)-1,1‘-biphenyl from the reaction of 4,4‘-bis(chloromethyl)-1,1‘-biphenyl and 1-butanol catalyzed by a polymer with quaternary ammonium groups (triphase catalysis) was carried out in a chlorobenzene/aqueous solution of a KOH two-phase medium. The polymer-supported phase-transfer catalysts were prepared using free-radical polymerization of styrene (St) and 4-vinylbenzyl chloride (4-VBC), followed by quaternized copolymer beads with various tertiary amines. The copolymer particles thus produced are uniform without sieving. This work emphasizes the comparison of the reactivity of the various functional groups attached to the copolymer beads. The effects of the various reaction conditions such as the agitation speed, amount of water, triphase catalyst, potassium hydroxide, organic solvents, temperature, and reusability of the triphase catalyst on the conversion and the reaction rate were investigated. Experimental results show that the triphase catalysts with quaternary ammonium groups facilitate the etherification. A comparison of the reactivity between two-phase and triphase catalysis in synthesizing 4,4‘-bis(butanoxymethyl)-1,1‘-biphenyl was made.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.