In an article, author is Zielke, Katharina, once mentioned the application of 591-11-7, SDS of cas: 591-11-7, Name is 5-Methylfuran-2(5H)-one, molecular formula is C5H6O2, molecular weight is 98.0999, MDL number is MFCD01725808, category is benzofurans. Now introduce a scientific discovery about this category.
Enantioselective Catalytic [4+1]-Cyclization of ortho-Hydroxy-para-Quinone Methides with Allenoates
The first highly asymmetric catalytic synthesis of densely functionalized dihydrobenzofurans is reported, which starts from ortho-hydroxy-containing para-quinone methides. The reaction relies on an unprecedented formal [4+1]-annulation of these quinone methides with allenoates in the presence of a commercially available chiral phosphine catalyst. The chiral dihydrobenzofurans were obtained as single diastereomers in yields up to 90 % and with enantiomeric ratios up to 95:5.
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Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem