中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 2-(5-ethyl-4-hydroxy-2-tosyl isoindolin-1-yl)acrylate | 1200091-39-9 | C21H23NO5S | 401.483 |
A sequence of an aza-Morita–Baylis–Hillman reaction, a simple sulfonamide propargylation, and a gold-catalyzed cycloisomerization delivers indoline derivatives with acrylate units in the side chain. The chemoselectivity in the last step is very high; out of the two C–C double bonds that are in equal distance to the alkyne, only the furan reacts, the acrylate neither participates in nor interferes with the gold catalysis.