| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5222252 | Tetrahedron | 2011 | 5 Pages |
Abstract
Rh2(S-PTAD)4 is an effective catalyst for the asymmetric cyclopropenation of aryl alkynes using a siloxyvinyldiazoacetate as the carbenoid precursor. Upon deprotection of the silyl protecting group, highly enantioenriched cyclopropenes bearing geminal acceptor groups can be accessed. These cyclopropenes undergo regioselective rhodium(II)-catalyzed ring expansion to furans.
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