Abstract
A one-pot asymmetric synthesis of 1,2,3,4-tetrahydrocarbazoles has been developed via an enantioselective [3 + 3] annulation of 2-alkynylindoles and donor-acceptor cyclopropanes. In the presence of chiral Lewis acids as catalysts, a series of optically active tetrahydrocarbazoles were furnished in high yields (63-87%) with good to excellent levels of enantioselectivity (up to 94% ee).
| Original language | English |
|---|---|
| Pages (from-to) | 4014-4017 |
| Number of pages | 4 |
| Journal | Organic Letters |
| Volume | 17 |
| Issue number | 16 |
| DOIs | |
| State | Published - 21 Aug 2015 |
| Externally published | Yes |