These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
23. Asymmetric direct vinylogous aldol reaction of unactivated gamma-butenolide to aldehydes. Yang Y; Zheng K; Zhao J; Shi J; Lin L; Liu X; Feng X J Org Chem; 2010 Aug; 75(15):5382-4. PubMed ID: 20590136 [TBL] [Abstract][Full Text] [Related]
24. A chiral solvent effect in asymmetric organocatalysis. North M; Villuendas P Org Lett; 2010 May; 12(10):2378-81. PubMed ID: 20397662 [TBL] [Abstract][Full Text] [Related]
25. Asymmetric aldol reactions catalyzed by efficient and recyclable silica-supported proline-based peptides. Yan J; Wang L Chirality; 2009 Apr; 21(4):413-20. PubMed ID: 18570310 [TBL] [Abstract][Full Text] [Related]
26. Direct asymmetric aldol reactions catalyzed by (4R)-4-(beta-Naphthalenyl)methoxy-(S)-proline. Shen Z; Chen W; Jiang H; Ding Y; Luo X; Zhang Y Chirality; 2005 Feb; 17(2):119-20. PubMed ID: 15669082 [TBL] [Abstract][Full Text] [Related]
27. Iterative direct aldol strategy for polypropionates: enantioselective total synthesis of (-)-membrenone A and B. Alagiri K; Lin S; Kumagai N; Shibasaki M Org Lett; 2014 Oct; 16(20):5301-3. PubMed ID: 25259628 [TBL] [Abstract][Full Text] [Related]
28. Asymmetric Total Synthesis of (-)-Kravanhin B. Zhong Z; Ma D; Zhao G; Li H; Xu D; Xie X; She X Chem Asian J; 2015 Dec; 10(12):2599-603. PubMed ID: 26398294 [TBL] [Abstract][Full Text] [Related]
29. Catalytic asymmetric synthesis of trans-configured beta-lactones: cooperation of Lewis acid and ion pair catalysis. Kull T; Cabrera J; Peters R Chemistry; 2010 Aug; 16(30):9132-9. PubMed ID: 20602368 [TBL] [Abstract][Full Text] [Related]
30. 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; 127(25):9285-9. PubMed ID: 15969611 [TBL] [Abstract][Full Text] [Related]
32. Direct organocatalytic asymmetric aldol reactions of alpha-amino aldehydes: expedient syntheses of highly enantiomerically enriched anti-beta-hydroxy-alpha-amino acids. Thayumanavan R; Tanaka F; Barbas III CF Org Lett; 2004 Sep; 6(20):3541-4. PubMed ID: 15387543 [TBL] [Abstract][Full Text] [Related]
33. Direct asymmetric aldol reactions of glycine schiff base with aldehydes catalyzed by chiral quaternary ammonium salts. Ooi T; Taniguchi M; Kameda M; Maruoka K Angew Chem Int Ed Engl; 2002 Dec; 41(23):4542-4. PubMed ID: 12458532 [No Abstract] [Full Text] [Related]
34. Small peptides catalyze highly enantioselective direct aldol reactions of aldehydes with hydroxyacetone: unprecedented regiocontrol in aqueous media. Tang Z; Yang ZH; Cun LF; Gong LZ; Mi AQ; Jiang YZ Org Lett; 2004 Jun; 6(13):2285-7. PubMed ID: 15200341 [TBL] [Abstract][Full Text] [Related]
35. Direct asymmetric allylic alkylation of butenolides with Morita-Baylis-Hillman carbonates. Cui HL; Huang JR; Lei J; Wang ZF; Chen S; Wu L; Chen YC Org Lett; 2010 Feb; 12(4):720-3. PubMed ID: 20104883 [TBL] [Abstract][Full Text] [Related]
36. Catalytic enantioselective synthesis of chiral γ-butyrolactones. Yanagisawa A; Kushihara N; Yoshida K Org Lett; 2011 Mar; 13(6):1576-8. PubMed ID: 21348475 [TBL] [Abstract][Full Text] [Related]
37. Asymmetric organocatalytic direct aldol reactions of ketones with alpha-keto acids and their application to the synthesis of 2-hydroxy-gamma-butyrolactones. Xu XY; Tang Z; Wang YZ; Luo SW; Cun LF; Gong LZ J Org Chem; 2007 Dec; 72(26):9905-13. PubMed ID: 18004868 [TBL] [Abstract][Full Text] [Related]
38. Direct enantioselective aldol reactions catalyzed by a proline-thiourea host-guest complex. Reis O; Eymur S; Reis B; Demir AS Chem Commun (Camb); 2009 Mar; (9):1088-90. PubMed ID: 19225645 [TBL] [Abstract][Full Text] [Related]
39. Asymmetric synthesis of quaternary alpha- and beta-amino acids and beta-lactams via proline-catalyzed mannich reactions with branched aldehyde donors. Chowdari NS; Suri JT; Barbas CF Org Lett; 2004 Jul; 6(15):2507-10. PubMed ID: 15255677 [TBL] [Abstract][Full Text] [Related]