87-41-2, Name is Isobenzofuran-1(3H)-one, molecular formula is C8H6O2, belongs to benzofurans compound, is a common compound. In a patnet, author is Li, Xuemin, once mentioned the new application about 87-41-2, Category: benzofurans.
Synthesis of Spiro[benzofuran-2,2′-benzo[b]thiophene]-3,3′-diones via PIDA/CuBr-Mediated Spirocyclization
A phenyliodine(III) diacetate (PIDA)/CuBr-mediated construction of the novel 3H,3’H-spiro[benzofuran-2,2′-benzo[b]thiophene]-3,3′-dione skeleton was realized from the reaction of (Z)-3-hydroxy-1-(2-hydroxyphenyl)-3-(2-halogenphenyl)prop-2-en-1-ones with potassium ethylxanthate in the presence of 1,10-phen. The reaction sequence was postulated to encompass a PIDA-mediated oxidative C-O bond formation followed by a CuBr-mediated spirocyclization step.
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Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem