86319-80-4Relevant articles and documents
Synthesis of isoflavones by tandem demethylation and ring-opening/cyclization of methoxybenzoylbenzofurans
Kunyane, Phaladi,Sonopo, Molahlehi S.,Selepe, Mamoalosi A.
supporting information, p. 3074 - 3082 (2019/11/19)
The unexpected conversion of benzoylbenzofurans into isoflavones through an intramolecular cascade that involves deprotection and ring-opening/cyclization is described. This was discovered in an investigation of the possible transformation of benzoylbenzofurans into coumaronochromones. This route affords isoflavones in two major steps from acetophenones and benzoquinones. The transformation was validated by synthesizing differently substituted isoflavone derivatives and further applied to a concise synthesis of a potential anticancer lead compound, glaziovianin A (1).
Topical Nonsteroidal Antipsoriatic Agents. 2. 2,3-(Alkylidenedioxy)naphthalene Analogues of Lonapalene
Venuti, Michael C.,Loe, Brad E.,Jones, Gordon H.,Young, John M.
, p. 2132 - 2136 (2007/10/02)
A series of 2,3-(alkylidenedioxy)naphthalene analogues (5a-p) of lonapalene (RS-43179,1), a 5-lipoxygenase inhibitor currently under clinical investigation for the treatment of psoriasis, has been prepared and evaluated for topical inhibitory activity aga
Derivatives of 1,3-Benzdioxoles, 48. Preparation and Reactions of 1,3-Benzdioxole-4,7-quinones
Dallacker, Franz,Holtmann, Bodo,Coerver, Wim
, p. 392 - 397 (2007/10/02)
We describe the preparation of a substituted 1,3-benzdioxole-4,7-quinone complex (2) by reaction of 4-hydroxy-1,3-benzdioxole (1) with potassiumnitrosodisulfonate.The quinones 4a-d can be obtained by treatment of the 4-hydroxy-7-methoxy-1,3-benzdioxoles 3a-d with ammoniumcerium(IV)nitrate.Reaction of 2 with several cyclophiles gives the addition compounds resp. the dehydrogenation-products 6b-d in partly high yields. - Keywords: 1,3-Benzdioxol-4,7-chinon, 6,7-Dimethyl-naphtho-1,3-dioxol-4,9-chinon, 6-Hydroxy-naphtho-1,3-dioxol-4,9-chinon