Journal
ORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 14, Pages 3763-3768Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qo00350c
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Funding
- National Natural Science Foundation of China [21702232]
- Double First-Class University Project [CPU2018GY02, CPU2018GY35]
- Fundamental Research Funds for the Central Universities [2632021ZD19]
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An N-heterocyclic carbene-catalyzed asymmetric [3 + 2] annulation of enals with propargylic ketimines has been developed for the facile and enantioselective construction of gamma, gamma-disubstituted pyrrolidin-2-ones. This method features mild reaction conditions, wide functional group tolerance, easy scalability, and high level of enantioselectivity, enriching the chemistry of NHC-bound homoenolates involved in the synthesis of gamma-lactams bearing gamma-quaternary stereogenic centers from acyclic ketimines.
An N-heterocyclic carbene-catalyzed asymmetric [3 + 2] annulation of enals with propargylic ketimines for the facile and enantioselective construction of gamma,gamma-disubstituted pyrrolidin-2-ones has been developed. This potocol was featured with mild reaction conditions, wild functional group tolerance, easy scalability, and high level of enantioselectivity, which also enriched the chemistry of NHC-bound homoenolates involved synthesis of gamma-lactams bearing gamma-quaternary stereogenic centers from acyclic kitimimes.
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