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Total Synthesis and Structural Validation of Phosdiecin A via Asymmetric Alcohol-Mediated Carbonyl Reductive Coupling
(American Chemical Society, 2019-09-21)
The first total synthesis and structural validation of phosdiecin A was accomplished in 13 steps through asymmetric iridium-catalyzed alcohol-mediated carbonyl reductive coupling. The present route is the shortest among ...
Catalytic Enantioselective alpha-Arylation of Carbonyl Compounds
(GEORG THIEME VERLAG KG, 2009)
Enantioselective creation of benzylic quaternary centers still is a continuous challenge to many synthetic organic chemists. Among the existing methods for installation of this type of center, the direct asymmetric ...
The effect of carbonyl group in the asymmetry of3,4J CH coupling constants in norbornanones
(John Wiley & Sons Ltd, 2008-02)
A rationalization of the known difference between the 3,4J C4H1 and 3,4JC1H4 couplings transmitted mainly through the 7-bridge in norbomanone is presented in terms of the effects of hyperconjugative interactions involving ...
The effect of carbonyl group in the asymmetry Of (3,4)J(CH) coupling constants in norbornanones
(JOHN WILEY & SONS LTD, 2008)
A rationalization of the known difference between the (3,4)J(C4H1) and (3,4)J(C1H4) couplings transmitted mainly through the 7-bridge in norbornanone is presented in terms of the effects of hyperconjugative interactions ...
Synthesis of a bicyclo[6.3.0]undecene skeleton characteristic of some cyclooctanoids by an intramolecular reductive coupling of carbonyls promoted by low-valent titanium
(Soc Brasileira QuimicaSao PauloBrasil, 1997)
NMR spin-spin couplings involving nuclei in the neighborhood of a carbonyl group. 3JCH couplings in α-substituted acetamides
(John Wiley & Sons Ltd, 2008-03)
In this work 3JCH spin-spin coupling constants (SSCCs) for the cis- and trans-conformers for α-X-acetamides (X = F, Cl, Br and CN) (1-4) were studied in detail since they were found to be notably different for both conformers. ...
N-Heterocyclic carbene copper(I) complex-catalyzed synthesis of 2-aryl benzoxazoles and benzothiazoles
(2016)
A new and efficient synthesis of 2-arylbenzoxazoles and benzothiazoles using a copper N-heterocyclic carbene complex is described. In a simple protocol a variety of 2-substituted benzoxazoles and benzothiazoles were obtained ...
On the (4)J(HH) long-range coupling in 2-bromocyclohexanone: conformational insights
(Wiley-blackwellMaldenEUA, 2009)
Effect of Sulfur Oxidation on the Transmission Mechanism of (4)J(HH) NMR Coupling Constants in 1,3-Dithiane
(Amer Chemical SocWashingtonEUA, 2009)