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Results: 1 to 20 of 95

1.

Acid-catalyzed reactions of 3-hydroxy-2-oxindoles with electron-rich substrates: synthesis of 2-oxindoles with all-carbon quaternary center.

Kinthada LK, Ghosh S, De S, Bhunia S, Dey D, Bisai A.

Org Biomol Chem. 2013 Sep 25;11(40):6984-93. doi: 10.1039/c3ob41482e.

PMID:
24057328
[PubMed]
2.

Friedel-Crafts alkylations of electron-rich aromatics with 3-hydroxy-2-oxindoles: scope and limitations.

Kinthada LK, Ghosh S, Babu KN, Sharique M, Biswas S, Bisai A.

Org Biomol Chem. 2014 Nov 7;12(41):8152-73. doi: 10.1039/c4ob01264j. Epub 2014 Sep 2.

PMID:
25179466
[PubMed - in process]
3.

Lewis acid-catalyzed Friedel-Crafts alkylations of 3-hydroxy-2-oxindole: an efficient approach to the core structure of azonazine.

Ghosh S, Kinthada LK, Bhunia S, Bisai A.

Chem Commun (Camb). 2012 Oct 18;48(81):10132-4. doi: 10.1039/c2cc35283d.

PMID:
22962662
[PubMed]
4.

Substitution and cyclization reactions involving the quasi-antiaromatic 2H-indol-2-one ring system.

England DB, Merey G, Padwa A.

Org Lett. 2007 Sep 13;9(19):3805-7. Epub 2007 Aug 21.

PMID:
17711291
[PubMed - indexed for MEDLINE]
5.

Asymmetric decarboxylative allylation of oxindoles.

Franckevičius V, Cuthbertson JD, Pickworth M, Pugh DS, Taylor RJ.

Org Lett. 2011 Aug 19;13(16):4264-7. doi: 10.1021/ol201613a. Epub 2011 Jul 21.

PMID:
21776973
[PubMed - indexed for MEDLINE]
6.

Catalytic asymmetric synthesis of 3-(alpha-hydroxy-beta-carbonyl) oxindoles by a Sc(III)-catalyzed direct aldol-type reaction.

Shen K, Liu X, Zheng K, Li W, Hu X, Lin L, Feng X.

Chemistry. 2010 Mar 22;16(12):3736-42. doi: 10.1002/chem.200903471.

PMID:
20175165
[PubMed - indexed for MEDLINE]
7.

Highly chemo- and enantioselective synthesis of 3-allyl-3-aryl oxindoles via the direct palladium-catalyzed alpha-arylation of amides.

Luan X, Wu L, Drinkel E, Mariz R, Gatti M, Dorta R.

Org Lett. 2010 May 7;12(9):1912-5. doi: 10.1021/ol1003093.

PMID:
20349945
[PubMed - indexed for MEDLINE]
8.
9.

Bicyclic guanidine-catalyzed asymmetric Michael additions of 3-benzyl-substituted oxindoles to N-maleimides.

Li L, Chen W, Yang W, Pan Y, Liu H, Tan CH, Jiang Z.

Chem Commun (Camb). 2012 May 25;48(42):5124-6. doi: 10.1039/c2cc31587d. Epub 2012 Apr 19.

PMID:
22516982
[PubMed - indexed for MEDLINE]
10.

Organocatalytic and electrophilic approach to oxindoles with C3-quaternary stereocenters.

Peng J, Huang X, Cui HL, Chen YC.

Org Lett. 2010 Oct 1;12(19):4260-3. doi: 10.1021/ol101668z.

PMID:
20812696
[PubMed - indexed for MEDLINE]
11.

Catalytic asymmetric synthesis of quaternary carbons bearing two aryl substituents. Enantioselective synthesis of 3-alkyl-3-aryl oxindoles by catalytic asymmetric intramolecular heck reactions.

Dounay AB, Hatanaka K, Kodanko JJ, Oestreich M, Overman LE, Pfeifer LA, Weiss MM.

J Am Chem Soc. 2003 May 21;125(20):6261-71.

PMID:
12785859
[PubMed - indexed for MEDLINE]
12.

Lewis acid-catalyzed enantioselective hydroxylation reactions of oxindoles and beta-keto esters using DBFOX ligand.

Ishimaru T, Shibata N, Nagai J, Nakamura S, Toru T, Kanemasa S.

J Am Chem Soc. 2006 Dec 27;128(51):16488-9.

PMID:
17177383
[PubMed - indexed for MEDLINE]
13.

Organocatalytic asymmetric desymmetrization: efficient construction of spirocyclic oxindoles bearing a unique all-carbon quaternary stereogenic center via sulfa-Michael addition.

Yao L, Liu K, Tao HY, Qiu GF, Zhou X, Wang CJ.

Chem Commun (Camb). 2013 Jul 11;49(54):6078-80. doi: 10.1039/c3cc42587h.

PMID:
23728072
[PubMed - indexed for MEDLINE]
14.

DDQ-mediated direct intramolecular-dehydrogenative-coupling (IDC): expeditious approach to the tetracyclic core of ergot alkaloids.

Bhunia S, Ghosh S, Dey D, Bisai A.

Org Lett. 2013 May 17;15(10):2426-9. doi: 10.1021/ol400899e. Epub 2013 Apr 29.

PMID:
23627779
[PubMed]
15.

Amino-indanol-catalyzed asymmetric Michael additions of oxindoles to protected 2-amino-1-nitroethenes for the synthesis of 3,3'-disubstituted oxindoles bearing α,β-diamino functionality.

Liu XL, Wu ZJ, Du XL, Zhang XM, Yuan WC.

J Org Chem. 2011 May 20;76(10):4008-17. doi: 10.1021/jo2004378. Epub 2011 Apr 18.

PMID:
21495732
[PubMed - indexed for MEDLINE]
16.

Facile synthesis of azaarene-substituted 3-hydroxy-2-oxindoles via Brønsted acid catalyzed sp3 C-H functionalization.

Niu R, Xiao J, Liang T, Li X.

Org Lett. 2012 Feb 3;14(3):676-9. doi: 10.1021/ol2030982. Epub 2012 Jan 24.

PMID:
22273253
[PubMed - indexed for MEDLINE]
18.

Palladium-catalyzed asymmetric benzylation of 3-aryl oxindoles.

Trost BM, Czabaniuk LC.

J Am Chem Soc. 2010 Nov 10;132(44):15534-6. doi: 10.1021/ja1079755.

PMID:
20961054
[PubMed]
19.

Enantioselective cascade Michael addition/cyclization reactions of 3-nitro-2H-chromenes with 3-isothiocyanato oxindoles: efficient synthesis of functionalized polycyclic spirooxindoles.

Tan F, Lu LQ, Yang QQ, Guo W, Bian Q, Chen JR, Xiao WJ.

Chemistry. 2014 Mar 17;20(12):3415-20. doi: 10.1002/chem.201303583.

PMID:
24677230
[PubMed - indexed for MEDLINE]
20.

Metal-free catalyzed oxidative trimerization of indoles by using TEMPO in air: a biomimetic approach to 2-(1H-indol-3-yl)-2,3'-biindolin-3-ones.

Qin WB, Chang Q, Bao YH, Wang N, Chen ZW, Liu LX.

Org Biomol Chem. 2012 Nov 28;10(44):8814-21. doi: 10.1039/c2ob26390d.

PMID:
23044781
[PubMed - indexed for MEDLINE]

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