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Items: 1 to 20 of 141

1.
2.

Chiral amine-thioureas bearing multiple hydrogen bonding donors: highly efficient organocatalysts for asymmetric Michael addition of acetylacetone to nitroolefins.

Wang CJ, Zhang ZH, Dong XQ, Wu XJ.

Chem Commun (Camb). 2008 Mar 28;(12):1431-3. doi: 10.1039/b718949d. Epub 2008 Jan 23.

PMID:
18338046
3.

An enantioselective approach to highly substituted tetrahydrocarbazoles through hydrogen bonding-catalyzed cascade reactions.

Wang XF, Chen JR, Cao YJ, Cheng HG, Xiao WJ.

Org Lett. 2010 Mar 5;12(5):1140-3. doi: 10.1021/ol1001818.

PMID:
20146508
4.

Enantioselective conjugate addition of both aromatic ketones and acetone to nitroolefins catalyzed by chiral primary amines bearing multiple hydrogen-bonding donors.

Sun ZW, Peng FZ, Li ZQ, Zou LW, Zhang SX, Li X, Shao ZH.

J Org Chem. 2012 Apr 20;77(8):4103-10. doi: 10.1021/jo300011x. Epub 2012 Mar 29.

PMID:
22443260
5.

Highly enantioselective conjugate addition of aldehydes to nitroolefins catalyzed by chiral bifunctional sulfamides.

Zhang XJ, Liu SP, Li XM, Yan M, Chan AS.

Chem Commun (Camb). 2009 Feb 21;(7):833-5. doi: 10.1039/b818582d. Epub 2008 Dec 15.

PMID:
19322457
6.

Enantioselective intramolecular crossed Rauhut-Currier reactions through cooperative nucleophilic activation and hydrogen-bonding catalysis: scope and mechanistic insight.

Wang XF, Peng L, An J, Li C, Yang QQ, Lu LQ, Gu FL, Xiao WJ.

Chemistry. 2011 May 27;17(23):6484-91. doi: 10.1002/chem.201100479. Epub 2011 Apr 27.

PMID:
21538618
7.

Water-compatible iminium activation: highly enantioselective organocatalytic Michael addition of malonates to α,β-unsaturated enones.

Mao Z, Jia Y, Li W, Wang R.

J Org Chem. 2010 Nov 5;75(21):7428-30. doi: 10.1021/jo101188m.

PMID:
20936828
8.

Alpha-aminophosphonates as novel organocatalysts for asymmetric Michael addition of carbonyl compounds to nitroolefins.

Tao Q, Tang G, Lin K, Zhao YF.

Chirality. 2008 Jul;20(7):833-8. doi: 10.1002/chir.20552.

PMID:
18381740
9.

Asymmetric Michael addition of trisubstituted carbanion to nitroalkenes catalyzed by sodium demethylquinine salt in water.

Chen FX, Shao C, Liu Q, Gong P, Liu CL, Wang R.

Chirality. 2009 Jun;21(6):600-3. doi: 10.1002/chir.20651.

PMID:
18752286
10.
11.

Chiral amines as organocatalysts for asymmetric conjugate addition to nitroolefins and vinyl sulfones via enamine activation.

Sulzer-Mossé S, Alexakis A.

Chem Commun (Camb). 2007 Aug 14;(30):3123-35. Epub 2007 Mar 21. Review.

PMID:
17653365
12.

L-prolinol as a highly enantioselective catalyst for Michael addition of cyclohexanone to nitroolefins.

Chua PJ, Tan B, Zeng X, Zhong G.

Bioorg Med Chem Lett. 2009 Jul 15;19(14):3915-8. doi: 10.1016/j.bmcl.2009.03.076. Epub 2009 Mar 25.

PMID:
19359171
13.

Asymmetric Michael addition reactions of 3-substituted benzofuran-2(3H)-ones to nitroolefins catalyzed by a bifunctional tertiary-amine thiourea.

Li X, Xue XS, Liu C, Wang B, Tan BX, Jin JL, Zhang YY, Dong N, Cheng JP.

Org Biomol Chem. 2012 Jan 14;10(2):413-20. doi: 10.1039/c1ob06518a. Epub 2011 Nov 16.

PMID:
22089821
14.
15.

Asymmetric Michael addition of gamma,gamma-disubstituted alpha,beta-unsaturated aldehydes to nitroolefins via dienamine catalysis.

Han B, Xiao YC, He ZQ, Chen YC.

Org Lett. 2009 Oct 15;11(20):4660-3. doi: 10.1021/ol901939b.

PMID:
19754072
17.

Asymmetric Michael addition mediated by novel cinchona alkaloid-derived bifunctional catalysts containing sulfonamides.

Luo J, Xu LW, Hay RA, Lu Y.

Org Lett. 2009 Jan 15;11(2):437-40. doi: 10.1021/ol802486m.

PMID:
19072133
18.

Enantioselective nitro-Michael reactions catalyzed by short peptides on water.

Freund M, Schenker S, Tsogoeva SB.

Org Biomol Chem. 2009 Oct 21;7(20):4279-84. doi: 10.1039/b910249c. Epub 2009 Aug 14.

PMID:
19795068
19.

Highly efficient catalytic system for enantioselective Michael addition of aldehydes to nitroalkenes in water.

Zhu S, Yu S, Ma D.

Angew Chem Int Ed Engl. 2008;47(3):545-8. No abstract available.

PMID:
18038442
20.

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