2003•Hecheng huaxueRequires access

Catalytic Synthesis of Dioctyl Phthalate by Di-n-octyl Tin Oxide

Guo Shi

Abstract

Dioctyl phthalate was synthesized using di n octyl tin oxide as an aprotic acid catalyst. The fators effecting reaction were discussed. The optimum reaction conditions were as follows: phthalic anhydride is 100mmol, n(phthalic anhydride)∶n(iso octyl alcohol)∶n(di n octyl tin oxide)=1∶3∶0.0028, reaction temperature is 184℃～220℃, reaction time is 3.5h with the yield over 98%.

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Key concepts: Phthalic anhydride, Chemistry, Catalysis, Yield (engineering), Phthalate, Tin, Organic chemistry, Tin oxide