ChemicalBook CAS DataBase List DIBENZO-P-DIOXIN

DIBENZO-P-DIOXIN synthesis

14synthesis methods

Product Name:DIBENZO-P-DIOXIN
CAS Number:262-12-4
Molecular formula:C12H8O2
Molecular Weight:184.19

95-57-8 Synthesis

95-57-8
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$10.00/5g

262-12-4
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$37.00/100mg

Yield:262-12-4 45%

Reaction Conditions:

with copper;potassium carbonate at 170 - 180;

Steps:

Dibenzo-p-dioxin (2)
Dibenzo-p-dioxin (2) was obtained by thermal condensation of o-chlorophenol (0.20 mol) in the presence of anhydrous potassium carbonate (15 g) and ultrafine copper powder (2 g) under constant stirring at 170-180 °C for 6-8 h. After cooling the reaction mixture to 20 °C, 20% NaOH aqueous solution was added thereto. Filtrated dibenzo-p-dioxin was precipitated with ethanol and recrystallized from benzene. Crystalline white product melts at 118-121 °C (see Ref. 24: 120-121 °C). The yield was 45% (on o-chlorophenol basis).

References:

Mognonov;Ayurova, O. Zh.;Il’ina;Khakhinov [Russian Chemical Bulletin,2018,vol. 67,# 10,p. 1903 - 1907][Izv. Akad. Nauk, Ser. Khim.,2018,# 10,p. 1903 - 1907,5]

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