中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 2-((4-methyl-N-(prop-2-ynyl)phenylsulfon amido) (5-methylfuran-2-yl)methyl)acrylate | 1200091-34-4 | C20H21NO5S | 387.456 |
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.