468 related articles for article (PubMed ID: 21141872)
1. Asymmetric cyclopropanation of β,γ-unsaturated α-ketoesters with stabilized sulfur ylides catalyzed by C2-symmetric ureas.
Cheng Y; An J; Lu LQ; Luo L; Wang ZY; Chen JR; Xiao WJ
J Org Chem; 2011 Jan; 76(1):281-4. PubMed ID: 21141872
[TBL] [Abstract][Full Text] [Related]
2. Asymmetric organocatalytic cyclopropanation of cinnamone derivatives with stabilized sulfonium ylides.
Wang J; Liu X; Dong S; Lin L; Feng X
J Org Chem; 2013 Jun; 78(12):6322-7. PubMed ID: 23718737
[TBL] [Abstract][Full Text] [Related]
3. Cobalt-catalyzed asymmetric cyclopropanation with diazosulfones: rigidification and polarization of ligand chiral environment via hydrogen bonding and cyclization.
Zhu S; Ruppel JV; Lu H; Wojtas L; Zhang XP
J Am Chem Soc; 2008 Apr; 130(15):5042-3. PubMed ID: 18357991
[TBL] [Abstract][Full Text] [Related]
4. Organocatalytic asymmetric Michael-type/Wittig reaction of phosphorus ylides: synthesis of chiral α-methylene-δ-ketoesters.
Lin A; Wang J; Mao H; Ge H; Tan R; Zhu C; Cheng Y
Org Lett; 2011 Aug; 13(16):4176-9. PubMed ID: 21755912
[TBL] [Abstract][Full Text] [Related]
5. Synthesis of optically active dihydropyrans from asymmetric [4 + 2] cycloaddition of β,γ-unsaturated α-ketoesters with allenic esters.
Pei CK; Jiang Y; Shi M
Org Biomol Chem; 2012 Jun; 10(22):4355-61. PubMed ID: 22555871
[TBL] [Abstract][Full Text] [Related]
6. Asymmetric Diels-Alder and inverse-electron-demand hetero-Diels-Alder reactions of β,γ-unsaturated α-ketoesters with cyclopentadiene catalyzed by N,N'-dioxide copper(II) complex.
Zhu Y; Chen X; Xie M; Dong S; Qiao Z; Lin L; Liu X; Feng X
Chemistry; 2010 Oct; 16(39):11963-8. PubMed ID: 20827702
[TBL] [Abstract][Full Text] [Related]
7. Asymmetric vinylogous Michael reaction of alpha,beta-unsaturated ketones with gamma-butenolide under multifunctional catalysis.
Huang H; Yu F; Jin Z; Li W; Wu W; Liang X; Ye J
Chem Commun (Camb); 2010 Aug; 46(32):5957-9. PubMed ID: 20601978
[TBL] [Abstract][Full Text] [Related]
8. Stereoselective synthesis of highly functionalized nitrocyclopropanes through the organocatalyic Michael-addition-initiated cyclization of bromonitromethane and β,γ-unsaturated α-ketoesters.
Yu H; Wang Q; Wang Y; Song H; Zhou Z; Tang C
Chem Asian J; 2013 Nov; 8(11):2859-63. PubMed ID: 23934622
[TBL] [Abstract][Full Text] [Related]
9. Asymmetric cycloaddition of β,γ-unsaturated α-ketoesters with electron-rich alkenes catalyzed by a chiral Er(OTf)3/N,N'-dioxide complex: highly enantioselective synthesis of 3,4-dihydro-2H-pyrans.
Zhu Y; Xie M; Dong S; Zhao X; Lin L; Liu X; Feng X
Chemistry; 2011 Jul; 17(29):8202-8. PubMed ID: 21647990
[TBL] [Abstract][Full Text] [Related]
10. Organocatalytic asymmetric direct alpha-alkynylation of cyclic beta-ketoesters.
Poulsen TB; Bernardi L; Aleman J; Overgaard J; Jørgensen KA
J Am Chem Soc; 2007 Jan; 129(2):441-9. PubMed ID: 17212424
[TBL] [Abstract][Full Text] [Related]
11. Density functional theory investigations on sulfur ylide promoted cyclopropanation reactions: insights on mechanism and diastereoselection issues.
Janardanan D; Sunoj RB
J Org Chem; 2007 Jan; 72(2):331-41. PubMed ID: 17221947
[TBL] [Abstract][Full Text] [Related]
12. AgAsF6/Sm(OTf)3 promoted reversal of enantioselectivity for the asymmetric Friedel-Crafts alkylations of indoles with beta,gamma-unsaturated alpha-ketoesters.
Liu Y; Shang D; Zhou X; Zhu Y; Lin L; Liu X; Feng X
Org Lett; 2010 Jan; 12(1):180-3. PubMed ID: 19938840
[TBL] [Abstract][Full Text] [Related]
13. DABCO-catalyzed regioselective cyclization reactions of β,γ-unsaturated α-ketophosphonates or β,γ-unsaturated α-ketoesters with allenic esters.
Pei CK; Wu L; Lian Z; Shi M
Org Biomol Chem; 2012 Jan; 10(1):171-80. PubMed ID: 22089699
[TBL] [Abstract][Full Text] [Related]
14. Organocatalytic asymmetric conjugate addition and cascade acyl transfer reaction of α-nitroketones.
Lu RJ; Yan YY; Wang JJ; Du QS; Nie SZ; Yan M
J Org Chem; 2011 Aug; 76(15):6230-9. PubMed ID: 21678911
[TBL] [Abstract][Full Text] [Related]
15. Delineating origins of stereocontrol in asymmetric Pd-catalyzed alpha-hydroxylation of 1,3-ketoesters.
Smith AM; Rzepa HS; White AJ; Billen D; Hii KK
J Org Chem; 2010 May; 75(9):3085-96. PubMed ID: 20337468
[TBL] [Abstract][Full Text] [Related]
16. Organocatalytic direct asymmetric vinylogous Michael reaction of an α,β-unsaturated γ-butyrolactam with enones.
Zhang Y; Shao YL; Xu HS; Wang W
J Org Chem; 2011 Mar; 76(5):1472-4. PubMed ID: 21244007
[TBL] [Abstract][Full Text] [Related]
17. Efficient construction of oxa- and aza-[n.2.1] skeletons: Lewis acid catalyzed intramolecular [3+2] cycloaddition of cyclopropane 1,1-diesters with carbonyls and imines.
Xing S; Pan W; Liu C; Ren J; Wang Z
Angew Chem Int Ed Engl; 2010 Apr; 49(18):3215-8. PubMed ID: 20340151
[No Abstract] [Full Text] [Related]
18. Catalytic enantioselective aldol additions of alpha-isothiocyanato imides to alpha-ketoesters.
Vecchione MK; Li L; Seidel D
Chem Commun (Camb); 2010 Jul; 46(25):4604-6. PubMed ID: 20485801
[TBL] [Abstract][Full Text] [Related]
19. Highly enantioselective allylation of alpha-ketoesters catalyzed by N,N'-dioxide-In(III) complexes.
Zheng K; Qin B; Liu X; Feng X
J Org Chem; 2007 Oct; 72(22):8478-83. PubMed ID: 17919001
[TBL] [Abstract][Full Text] [Related]
20. Stereospecific cyclopropanation of highly substituted C-C double bonds promoted by CrCl2. Stereoselective synthesis of cyclopropanecarboxamides and cyclopropyl ketones.
Concellón JM; Rodríguez-Solla H; Méjica C; Blanco EG
Org Lett; 2007 Aug; 9(16):2981-4. PubMed ID: 17629282
[TBL] [Abstract][Full Text] [Related]
[Next] [New Search]