Enantioselective synthesis of highly functionalised amides by copper-catalysed vinylogous Mukaiyama aldol reaction.
@article{Frings2010EnantioselectiveSO, title={Enantioselective synthesis of highly functionalised amides by copper-catalysed vinylogous Mukaiyama aldol reaction.}, author={Marcus Frings and Daniel Goedert and Carsten Bolm}, journal={Chemical communications}, year={2010}, volume={46 30}, pages={ 5497-9 } }
Amides with quaternary stereogenic centers have been synthesised by catalytic asymmetric vinylogous Mukaiyama aldol reactions. The chiral copper-sulfoximine catalyst gives rise to products with moderate to good yields and up to 92% ee.
42 Citations
Enantioselective Synthesis of Highly Functionalized Amides by Copper-Catalyzed Vinylogous Mukaiyama Aldol Reaction.
- Chemistry, Biology
- 2010
The title reaction affords amides with quaternary stereogenic centers in moderate to good yields and with up to 92% e.e.
Direct enantioselective amination of α-ketoesters catalyzed by an axially chiral guanidine base.
- ChemistryChemistry
- 2011
The reaction produces enantioenriched multifunctionalized ketoesters which can be readily derivatized to β-amino-α-hydroxy esters with an aliphatic substituent at the β-position.
Asymmetric Copper-Catalyzed Vinylogous Mukaiyama Michael Addition of Cyclic Dienol Silanes to Unsaturated α-Keto Phosphonates.
- Chemistry, BiologyChemistry
- 2015
A highly stereoselective vinylogous Mukaiyama Michael reaction (VMMR) leading to α-keto phosphonate-containing γ-butenolides with two stereogenic centers is described. The presented transformation is…
The Copper‐Catalyzed Oxidative N‐Acylation of Sulfoximines
- Chemistry, Biology
- 2013
An oxidative cross-coupling reaction between aldehydes and sulfoximines involving dual CH/NH functionalization has been developed and proceeds under mild reaction conditions to afford a series of valuable N-acylated sulf oximine derivatives in excellent yields.
Catalytic, asymmetric synthesis of phosphonic γ-(hydroxyalkyl)butenolides with contiguous quaternary and tertiary stereogenic centers.
- Chemistry, BiologyChemistry
- 2014
A procedure that enables high yielding access to phosphonic γ-(hydroxyalkyl)butenolides with excellent regio-, diastereo- and enantiocontrol is reported. The simultaneous construction of up to two…
Synthesis of chiral sulfoximines derived from 3-aminoquinazolinones and their catalysis of enantioselective diethylzinc addition to aldehydes.
- ChemistryOrganic & biomolecular chemistry
- 2011
Sulfoximinated sulfoxides were applied for the first time in catalytic enantioselective addition to aromatic aldehydes with a product enantiopurity (ee) of 92% in the case of 2-methoxybenzaldehyde.
Sulfoximinocarbonylation of aryl halides using heterogeneous Pd/C catalyst
- Chemistry, Biology
- 2016
A three component protocol has been developed for the synthesis of N-aroyl sulfoximines by the carbonylation of aryl halides followed by nucleophilic attack of NH-sulfoximines. This reaction…
Transition metal-free aroylation of NH-sulfoximines with methyl arenes.
- Chemistry, BiologyChemical communications
- 2015
A novel protocol towards N-aroylated sulfoximines from NH-sulfoximines and methyl arenes was herein demonstrated. The reaction took place in the presence of elemental iodine, requiring no external…
Copper-catalyzed oxidative cross-coupling of sulfoximines and alkynes.
- ChemistryAngewandte Chemie
- 2013
This work considered oxidative cross-coupling methods for the construction of the respective C N bonds between two nucleophiles and found that this approach could also open access to N-alkynylated sulfoximines, an essentially unexplored substrate class.
References
SHOWING 1-10 OF 30 REFERENCES
Catalyzed vinylogous Mukaiyama aldol reactions with controlled enantio- and diastereoselectivities.
- ChemistryChemistry
- 2009
A new catalytic vinylogous Mukaiyama aldol reaction provides products with high diastereo- and enantioselectivities and relative and absolute stereochemistry of a representative product was rigorously assigned by NMR and CD spectroscopies, X-ray diffraction, and quantum-chemical calculations.
Sulfoximines as ligands in copper-catalyzed asymmetric vinylogous Mukaiyama-type aldol reactions.
- ChemistryOrganic letters
- 2006
[reaction: see text] gamma,delta-Unsaturated alpha-hydroxy diesters with quaternary centers have been obtained with up to 99% ee in high yields using catalysts prepared from copper(II) triflate and…
A catalytic asymmetric vinylogous Mukaiyama aldol reaction.
- Chemistry, BiologyOrganic letters
- 2007
A vinylogous Mukaiyama aldol reaction, conducted using 10 mol % of a BITIP catalyst and B(OMe)3 as an additive, effects an enantioselective four-carbon chain extension to give versatile…
C1-symmetric oxazolinyl sulfoximines as ligands in copper-catalyzed asymmetric mukaiyama aldol reactions.
- Chemistry, BiologyOrganic letters
- 2008
Aryl-bridged C1-symmetric oxazolinyl sulfoximines are applicable in copper-catalyzed asymmetric Mukaiyama aldol reactions with methyl pyruvate and represent valuable precursors for biologically active molecules.
Asymmetric, catalytic, vinylogous aldol reactions using pyrrole-based dienoxy silanes. Enantioselective synthesis of α,β-unsaturated γ-butyrolactam synthons
- Chemistry, Biology
- 2009
C1-symmetric aminosulfoximines in copper-catalyzed asymmetric vinylogous Mukaiyama aldol reactions.
- ChemistryChemistry
- 2010
Vinylogous Mukaiyama-type aldol reactions have been catalyzed by a combination of Cu(OTf)2 and readily available C1-symmetric aminosulfoximines, achieving high stereoselectivities and excellent yields.
Enantioselective Halogenation of β‐Oxo Esters Catalyzed by a Chiral Sulfoximine–Copper Complex
- Chemistry
- 2009
A C1-symmetric amino sulfoximine has been used as a chiral ligand in copper-catalyzed asymmetric halogenation reactions of β-oxo esters. Both the catalyst itself and the reaction conditions were…
Brønsted acid-catalyzed, enantioselective, vinylogous Mannich reaction of vinylketene silyl N,O-acetals.
- ChemistryOrganic letters
- 2008
Vinylketene silyl N, O-acetals undergo chiral phosphoric acid-catalyzed, vinylogous Mukaiyama-Mannich reactions with imines and afford delta-amino-alpha,beta-unsaturated amides in typically good…
Sulfoximines: Synthesis and Catalytic Applications
- Chemistry
- 2004
Chiral sulfoximines have a stereogenic center at the sulfur atom and their use in asymmetric synthesis is well established. Recently, sulfoximines have been recognized as an interesting new class of…
Oxazaborolidinone-promoted vinylogous Mukaiyama aldol reactions.
- ChemistryOrganic letters
- 2007
Delta-Hydroxy-alpha,beta-unsaturated carbonyl compounds were prepared in one step via the vinylogous Mukaiyama aldol reactions with O,O-silyl ketene acetals to obtain gamma-alkylated product in high enantioselectivities.