Abstract
A novel gold-catalyzed oxidative cyclization/aldol addition of homopropargyl alcohols with isatins has been developed that provides an effective access to the 3-hydroxyoxindoles in high yields under mild reaction conditions with high diastereoselectivities. In comparison with disclosed transformations of alkyne oxidations via an α-oxo gold carbene route, this is the first example of an aldol-type interception of an ylide (or its enolate form) intermediate with alkyne as a safe and readily available nondiazo carbene precursor.
| Original language | English |
|---|---|
| Pages (from-to) | 369-372 |
| Number of pages | 4 |
| Journal | Organic Letters |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| State | Published - 18 Jan 2019 |
| Externally published | Yes |