O dichlorobenzene

Na ion-exchanged Y-type zeolite (Na-Y) with SiO₂/Al₂O₃ = 5.5 was supplied by Tosoh Co. The following chemicals were used as received: FeSO₄∙7H₂O (Wako, > 99%), sodium nitrate (Wako, 99.0%), ethylenediaminetetraacetate acid (TCI, 98.0%), ethylenediaminetetraacetate acid disodium salt (Wako, 99.5%), sodium hydroxide (Wako, 93%), 2,2′;6′,2″-terpyridine (TCI, 98.0%), methanol (Wako, 99.8%), 30% aqueous hydrogen peroxide (Wako, 30–35.5%), benzene (Wako, 99.5%), phenol (Wako, 99.0%), catechol (Wako, 99.0%), hydroquinone (Wako, 99.0%), o-dichlorobenzene (Wako, 98.0%), and acetonitrile (Wako, 99.5%).
ICP-AES and CHN elemental analyses of all catalysts were carried out after the sample was dissolved into a HF solution. The powder XRD patterns of the catalysts were collected on a Rigaku MiniFlex II diffractometer using CuKα radiation. The Brunauer–Emmet–Teller (BET) surface area measurements were conducted to determine the specific surface areas and pore diameters of the samples by performing N₂ adsorption experiments at 77 K using a BEL Japan Bellsorp-max instrument. The UV-vis spectra were recorded on a Hitachi U-4000 spectrometer for solid samples. Gas chromatography (GC, Shimadzu GC-2014) was performed using a flame ionization detector equipped with a DB-1MS capillary column (internal diameter = 0.25 mm and length = 30 m) at the nature of the non-polar liquid phase.

Glycolic acid (GA), thionyl chloride (SOCl₂), 1,4-butanediol (BD), adipic acid (AA), 2,5-furandicarboxylic acid (FDCA), and N,N-dimethylacetamide (DMAc) were purchased from Tokyo Chemical Industry Co. Potassium hydrogen carbonate and o-dichlorobenzene (ODCB) were purchased from Wako Pure Chemical Industries, Ltd. N,N-Dimethylformamide (DMF), 1,1,2,2-tetrachloroethane (TCE), pyridine, acetone, chloroform, methanol, THF, dimethyl sulfoxide (DMSO), and sulfuric acid (H₂SO₄) were purchased from Kanto Chemical Co., Inc (Tokyo Japan). 1,3-Dibromopropane (DBP), terephthaloyl dichloride (TC), and adipoyl dichloride (AC) were purchased from Tokyo Chemical Industry Co. (Tokyo Japan). 1,4-Dibromobutane, and poly(Glycolic acid) (PGA) were purchased from Sigma-Aldrich, Inc. (St. Louis, MO, USA) Poly(butylene furanoate) (PBF) [17 (link)] and poly(butylene adipate) (PBA) [18 (link)] were prepared according to the literatures. 2,5-Furandicarbonyl dichloride (FC) was prepared from the reaction of FDCA with SOCl₂ according to the literature [19 (link)].