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Enantioselective -heterocyclic Carbene-catalyzed Nucleophilic Dearomatization of Alkyl Pyridiniums

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Journal Chem Sci
Specialty Chemistry
Date 2017 Oct 10
PMID 28989683
Citations 15
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Abstract

NHC-catalyzed nucleophilic dearomatization of alkyl pyridiniums has been achieved to generate 1,4-dihydropyridines with high enantioselectivity. This is a rare example of catalytic, asymmetric addition of a nucleophile to the activated pyridinium that prefers C-4 functionalization leading to the 1,4-dihydropyridine with high selectivity.

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References
1.
Menon R, Biju A, Nair V . Recent advances in employing homoenolates generated by N-heterocyclic carbene (NHC) catalysis in carbon-carbon bond-forming reactions. Chem Soc Rev. 2015; 44(15):5040-52. DOI: 10.1039/c5cs00162e. View

2.
White N, DiRocco D, Rovis T . Asymmetric N-heterocyclic carbene catalyzed addition of enals to nitroalkenes: controlling stereochemistry via the homoenolate reactivity pathway to access δ-lactams. J Am Chem Soc. 2013; 135(23):8504-7. PMC: 3723348. DOI: 10.1021/ja403847e. View

3.
McDONALD T, Pelzer S, TRAUTWEIN W, Pelzer D . Regulation and modulation of calcium channels in cardiac, skeletal, and smooth muscle cells. Physiol Rev. 1994; 74(2):365-507. DOI: 10.1152/physrev.1994.74.2.365. View

4.
Bertuzzi G, Sinisi A, Pecorari D, Caruana L, Mazzanti A, Bernardi L . Nucleophilic Dearomatization of Pyridines under Enamine Catalysis: Regio-, Diastereo-, and Enantioselective Addition of Aldehydes to Activated N-Alkylpyridinium Salts. Org Lett. 2017; 19(4):834-837. DOI: 10.1021/acs.orglett.6b03824. View

5.
Meyers A . Chiral oxazolines and their legacy in asymmetric carbon-carbon bond-forming reactions. J Org Chem. 2005; 70(16):6137-51. DOI: 10.1021/jo050470h. View