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Items: 1 to 20 of 120

1.

Chiral picolylamines for Michael and aldol reactions: probing substrate boundaries.

Nugent TC, Bibi A, Sadiq A, Shoaib M, Umar MN, Tehrani FN.

Org Biomol Chem. 2012 Dec 14;10(46):9287-94. doi: 10.1039/c2ob26382c. Epub 2012 Oct 29.

PMID:
23104278
2.

Picolylamine as an organocatalyst template for highly diastereo- and enantioselective aqueous aldol reactions.

Nugent TC, Umar MN, Bibi A.

Org Biomol Chem. 2010 Sep 21;8(18):4085-9. doi: 10.1039/c0ob00049c. Epub 2010 Jul 12.

PMID:
20623075
4.

Readily tunable and bifunctional L-prolinamide derivatives: design and application in the direct enantioselective Aldol reactions.

Chen JR, Lu HH, Li XY, Cheng L, Wan J, Xiao WJ.

Org Lett. 2005 Sep 29;7(20):4543-5.

PMID:
16178579
5.

Chiral primary-secondary diamines catalyzed Michael-aldol-dehydration reaction between benzoylacetates and alpha,beta-unsaturated ketones: highly enantioselective synthesis of functionalized chiral cyclohexenones.

Yang YQ, Chai Z, Wang HF, Chen XK, Cui HF, Zheng CW, Xiao H, Li P, Zhao G.

Chemistry. 2009 Dec 14;15(48):13295-8. doi: 10.1002/chem.200901541. No abstract available.

PMID:
19908264
6.

Pyrrolidine based chiral organocatalyst for efficient asymmetric Michael addition of cyclic ketones to β-nitrostyrenes.

Singh KN, Singh P, Singh P, Lal N, Sharma SK.

Bioorg Med Chem Lett. 2012 Jul 1;22(13):4225-8. doi: 10.1016/j.bmcl.2012.05.047. Epub 2012 May 19.

PMID:
22672804
7.

First asymmetric cascade reaction catalysed by chiral primary aminoalcohols.

Arróniz C, Escolano C, Luque FJ, Bosch J, Amat M.

Org Biomol Chem. 2011 Jul 21;9(14):5079-85. doi: 10.1039/c1ob05400g. Epub 2011 May 25.

PMID:
21614385
8.

Quantum mechanical predictions of the stereoselectivities of proline-catalyzed asymmetric intermolecular aldol reactions.

Bahmanyar S, Houk KN, Martin HJ, List B.

J Am Chem Soc. 2003 Mar 5;125(9):2475-9.

PMID:
12603135
9.

D-Glucosamine in a chimeric prolinamide organocatalyst for direct asymmetric aldol addition.

De Nisco M, Pedatella S, Bektaş S, Nucci A, Caputo R.

Carbohydr Res. 2012 Jul 15;356:273-7. doi: 10.1016/j.carres.2012.03.041. Epub 2012 Apr 18.

PMID:
22575747
10.

An achiral-acid-induced switch in the enantioselectivity of a chiral cis-diamine-based organocatalyst for asymmetric aldol and Mannich reactions.

Moteki SA, Han J, Arimitsu S, Akakura M, Nakayama K, Maruoka K.

Angew Chem Int Ed Engl. 2012 Jan 27;51(5):1187-90. doi: 10.1002/anie.201107239. Epub 2011 Dec 21. No abstract available.

PMID:
22190385
11.

Enantioselective desymmetrization of prochiral cyclohexanones by organocatalytic intramolecular Michael additions to α,β-unsaturated esters.

Gammack Yamagata AD, Datta S, Jackson KE, Stegbauer L, Paton RS, Dixon DJ.

Angew Chem Int Ed Engl. 2015 Apr 13;54(16):4899-903. doi: 10.1002/anie.201411924. Epub 2015 Feb 27.

12.

A highly efficient organocatalyst for direct aldol reactions of ketones with aldehydes [corrected].

Tang Z, Yang ZH, Chen XH, Cun LF, Mi AQ, Jiang YZ, Gong LZ.

J Am Chem Soc. 2005 Jun 29;127(25):9285-9.

PMID:
15969611
13.

2,4-Dinitrophenol as an effective cocatalyst: greatly improving the activities and enantioselectivities of primary amine organocatalysts for asymmetric aldol reactions.

Da CS, Che LP, Guo QP, Wu FC, Xiao Ma, Jia YN.

J Org Chem. 2009 Mar 20;74(6):2541-6. doi: 10.1021/jo802758b.

PMID:
19249831
14.

Refined transition-state models for proline-catalyzed asymmetric Michael reactions under basic and base-free conditions.

Sharma AK, Sunoj RB.

J Org Chem. 2012 Dec 7;77(23):10516-24. doi: 10.1021/jo3023654. Epub 2012 Nov 27.

PMID:
23186327
15.

Chiral primary-tertiary diamine catalysts derived from natural amino acids for syn-aldol reactions of hydroxy ketones.

Li J, Luo S, Cheng JP.

J Org Chem. 2009 Feb 20;74(4):1747-50. doi: 10.1021/jo802557p.

PMID:
19152260
16.
17.

Pyrrolidinyl-sulfamide derivatives as a new class of bifunctional organocatalysts for direct asymmetric Michael addition of cyclohexanone to nitroalkenes.

Chen JR, Fu L, Zou YQ, Chang NJ, Rong J, Xiao WJ.

Org Biomol Chem. 2011 Jul 21;9(14):5280-7. doi: 10.1039/c1ob05442b. Epub 2011 Jun 6.

PMID:
21647476
18.

Asymmetric direct aldol reactions of pyruvic derivatives.

Luo S, Xu H, Chen L, Cheng JP.

Org Lett. 2008 May 1;10(9):1775-8. doi: 10.1021/ol800471b. Epub 2008 Apr 8.

PMID:
18393517
19.

Highly enantioselective aldol reaction of acetone with β,γ-unsaturated α-keto esters promoted by simple chiral primary-tertiary diamine catalysts.

Peng L, Wang LL, Bai JF, Jia LN, Guo YL, Luo XY, Wang FY, Xu XY, Wang LX.

Org Biomol Chem. 2011 Jul 7;9(13):4774-7. doi: 10.1039/c1ob05607g. Epub 2011 May 26.

PMID:
21614388
20.

Asymmetric aldol reactions of α,β-unsaturated ketoester substrates catalyzed by chiral diamines.

Kan SS, Li JZ, Ni CY, Liu QZ, Kan TR.

Molecules. 2011 May 4;16(5):3778-86. doi: 10.3390/molecules16053778.

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