中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-苯并呋喃酮 | 3-oxo-2,3-dihydrobenzo[b]furan | 7169-34-8 | C8H6O2 | 134.134 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (Z)-2-(3-benzylbenzylidene)benzofuran-3(2H)-one | 1613189-97-1 | C22H16O2 | 312.368 |
—— | (Z)-2-(biphenyl-3-ylmethylene)benzofuran-3(2H)-one | 1613189-93-7 | C21H14O2 | 298.341 |
—— | (Z)-3'-((3-oxobenzofuran-2(3H)-ylidene)methyl)biphenyl-4-carbaldehyde | 1613189-96-0 | C22H14O3 | 326.351 |
—— | (Z)-2-((4'-chlorobiphenyl-3-yl)methylene)benzofuran-3(2H)-one | 1613189-95-9 | C21H13ClO2 | 332.786 |
—— | (Z)-2-((4'-fluorobiphenyl-3-yl)methylene)benzofuran-3(2H)-one | 1613189-94-8 | C21H13FO2 | 316.331 |
—— | (Z)-2-(3-(6-aminopyridin-3-yl)benzylidene)benzofuran-3(2H)-one | 1613189-99-3 | C20H14N2O2 | 314.343 |
—— | (Z)-2-(3-(quinolin-3-yl)benzylidene)benzofuran-3(2H)-one | 1613189-98-2 | C24H15NO2 | 349.389 |
Aurones were discovered as sub-micromolar HNE inhibitors. The activity is rationalized by a C-shape conformation that allows tight binding to HNE S1 and S2 pockets.
A base-promoted formal (2+1) cycloaddition of benzofuran-derived oxadienes with bromomalonates was established that afforded benzofuranone-based spirocyclopropanes in generally good yields (up to 98%) and high diastereoselectivities (up to 91:9 dr). This reaction is the first highly diastereoselective formal (2+1) cycloaddition of benzofuran-derived oxadienes, and will contribute to the chemistry of these compounds. In addition, this approach provides an atom-economic and useful protocol for constructing benzofuranone-based spiro skeletons.