Publication details
Asymmetric One-Pot Conjugate Addition of Grignard Reagents to alpha,beta-Unsaturated Compounds Followed by Reaction with Carbenium Ions
| Authors | |
|---|---|
| Year of publication | 2015 |
| Type | Article in Periodical |
| Magazine / Source | ADVANCED SYNTHESIS & CATALYSIS |
| MU Faculty or unit | |
| Citation | |
| web | http://onlinelibrary.wiley.com/doi/10.1002/adsc.201500074/abstract;jsessionid=6039F4AD8F14C5AFBD11F8B684CAF703.f03t04 |
| Doi | http://dx.doi.org/10.1002/adsc.201500074 |
| Field | Organic chemistry |
| Keywords | asymmetric catalysis; carbocations; conjugate addition; domino reactions; ferrocene ligands |
| Description | Asymmetric catalytic multistep reactions enable the formation of structurally complex compounds from simple starting materials. Enantioselective Cu-catalyzed 1,4-additions of Grignard reagents to Michael acceptors form reactive chiral enolates. We show here that these chiral enolates react in a one-pot fashion with naked carbenium ions, such as tropylium, 1,3-benzodithiolium, and dianisylmethylium ions. The corresponding products were obtained in good yields, with enantioselectivities up to 96% ee and high diastereomeric purities. |
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