2161-85-5CC(=O)c1cc(C(C)=O)c(O)cc1OGEYCQLIOGQPPFM-UHFFFAOYSA-Nstructure in first source
2161-85-5DTXSID50175994Warning
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 41 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Uses1,1′-(4,6-Dihydroxy-1,3-phenylene)bisethanone (4,6-diacetylresorcinol, DAR) may be used in the synthesis of the following:Schiff base ligandshexadentate chalcogenated bisimine ligands1,5-benzodiazepinesketimine of chitosanmannich baseshydrazone ligandsthiosemicarbazone, semicarbazone and thiocarbohydrazone ligandsbinuclear cobalt(II) and copper(II) complexes europium (III) complexes
General Description1,1′-(4,6-Dihydroxy-1,3-phenylene)bisethanone (4,6-diacetylresorcinol, DAR) is a bifunctional carbonyl compound. Its synthesis by acetylating resorcinol in the presence of zinc chloride has been reported. The crystal structure of DAR has been studied.
PreparationPreparation by Friedel–Crafts acylation of resorcinol, with acetic anhydride, – in the presence of zinc chloride at 142–150° for 15 min (96%) or at 150–160° for 20 min (68%); – in the presence of ferric chloride. – in the presence of concentrated sulfuric acid at 130° for 15 min (15%) ; – in the presence of 70% perchloric acid at 125–135° for 15–20 min (42%) . with acetyl chloride, – in the presence of zinc chloride, at 120°; – in the presence of ferric chloride, at 150° for 15 min (60%) or at reflux for 30 min ; – in the presence of concentrated sulfuric acid (18%) . by a typical Friedel–Crafts reaction (24%).
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