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Items: 1 to 20 of 189

1.

Asymmetric synthesis of pyrroloindolones by N-heterocyclic carbene catalyzed [2+3] annulation of α-chloroaldehydes with nitrovinylindoles.

Ni Q, Zhang H, Grossmann A, Loh CC, Merkens C, Enders D.

Angew Chem Int Ed Engl. 2013 Dec 16;52(51):13562-6. doi: 10.1002/anie.201305957. Epub 2013 Nov 4.

PMID:
24346939
2.

N-Heterocyclic Carbene Catalyzed [4+2] Annulation of Enals via a Double Vinylogous Michael Addition: Asymmetric Synthesis of 3,5-Diaryl Cyclohexenones.

Chen XY, Liu Q, Chauhan P, Li S, Peuronen A, Rissanen K, Jafari E, Enders D.

Angew Chem Int Ed Engl. 2017 May 22;56(22):6241-6245. doi: 10.1002/anie.201702881. Epub 2017 Apr 21.

PMID:
28429516
3.

N-heterocyclic carbene catalyzed activation of esters: a new option for asymmetric domino reactions.

Chauhan P, Enders D.

Angew Chem Int Ed Engl. 2014 Feb 3;53(6):1485-7. doi: 10.1002/anie.201309952. Epub 2014 Jan 21.

PMID:
24492969
4.

Asymmetric N-Heterocyclic Carbene Catalyzed Annulation of 2-Alkenylbenzothiazoles with α-Chloro Aldehydes.

Song X, Ni Q, Zhu C, Raabe G, Enders D.

Synthesis (Stuttg). 2014 Nov 6;47(3):421-428.

5.

N-heterocyclic carbene-catalyzed enantioselective annulation of indolin-3-ones with bromoenals.

Ni Q, Song X, Raabe G, Enders D.

Chem Asian J. 2014 Jun;9(6):1535-8. doi: 10.1002/asia.201402052. Epub 2014 Apr 11.

PMID:
24729588
6.

Enantioselective Synthesis of Spirocyclohexadienones by NHC-Catalyzed Formal [3+3] Annulation Reaction of Enals.

Yetra SR, Mondal S, Mukherjee S, Gonnade RG, Biju AT.

Angew Chem Int Ed Engl. 2016 Jan 4;55(1):268-72. doi: 10.1002/anie.201507802. Epub 2015 Oct 21.

PMID:
26487242
7.

N-heterocyclic carbene (NHC)-catalyzed highly diastereo- and enantioselective oxo-Diels-Alder reactions for synthesis of fused pyrano[2,3-b]indoles.

Yang L, Wang F, Chua PJ, Lv Y, Zhong LJ, Zhong G.

Org Lett. 2012 Jun 1;14(11):2894-7. doi: 10.1021/ol301175z. Epub 2012 May 18.

PMID:
22594458
8.

Bifunctional N-heterocyclic carbene catalyzed [3+4] annulation of enals and aurones.

Liang ZQ, Gao ZH, Jia WQ, Ye S.

Chemistry. 2015 Jan 26;21(5):1868-72. doi: 10.1002/chem.201405828. Epub 2014 Dec 11.

PMID:
25504614
9.

N-heterocyclic carbene catalyzed formal [3+2] annulation reaction of enals: an efficient enantioselective access to spiro-heterocycles.

Guo C, Schedler M, Daniliuc CG, Glorius F.

Angew Chem Int Ed Engl. 2014 Sep 15;53(38):10232-6. doi: 10.1002/anie.201405381. Epub 2014 Aug 11.

PMID:
25130870
10.

N-Heterocyclic Carbene Catalyzed Synthesis of δ-Sultones via α,β-Unsaturated Sulfonyl Azolium Intermediates.

Ungureanu A, Levens A, Candish L, Lupton DW.

Angew Chem Int Ed Engl. 2015 Sep 28;54(40):11780-4. doi: 10.1002/anie.201504633. Epub 2015 Aug 10.

PMID:
26261029
11.

N-heterocyclic carbene catalyzed cyclocondensation of α,β-unsaturated carboxylic acids: enantioselective synthesis of pyrrolidinone and dihydropyridinone derivatives.

Chen XY, Gao ZH, Song CY, Zhang CL, Wang ZX, Ye S.

Angew Chem Int Ed Engl. 2014 Oct 20;53(43):11611-5. doi: 10.1002/anie.201407469. Epub 2014 Sep 9.

PMID:
25204307
12.

Switchable Access to Different Spirocyclopentane Oxindoles by N-Heterocyclic Carbene Catalyzed Reactions of Isatin-Derived Enals and N-Sulfonyl Ketimines.

Wang L, Li S, Blümel M, Puttreddy R, Peuronen A, Rissanen K, Enders D.

Angew Chem Int Ed Engl. 2017 Jul 10;56(29):8516-8521. doi: 10.1002/anie.201704210. Epub 2017 Jun 20.

PMID:
28568965
13.

Highly enantioselective azadiene Diels-Alder reactions catalyzed by chiral N-heterocyclic carbenes.

He M, Struble JR, Bode JW.

J Am Chem Soc. 2006 Jul 5;128(26):8418-20.

PMID:
16802805
14.

N-Heterocyclic-Carbene-Catalyzed Umpolung of Imines.

Patra A, Mukherjee S, Das TK, Jain S, Gonnade RG, Biju AT.

Angew Chem Int Ed Engl. 2017 Mar 1;56(10):2730-2734. doi: 10.1002/anie.201611268. Epub 2017 Jan 27.

PMID:
28128506
15.

Asymmetric, Three-Component, One-Pot Synthesis of Spiropyrazolones and 2,5-Chromenediones from Aldol Condensation/NHC-Catalyzed Annulation Reactions.

Wang L, Li S, Chauhan P, Hack D, Philipps AR, Puttreddy R, Rissanen K, Raabe G, Enders D.

Chemistry. 2016 Apr 4;22(15):5123-7. doi: 10.1002/chem.201600515. Epub 2016 Feb 18.

PMID:
26864437
16.

Access to Spiro and Fused Indole Derivatives from α,β-Unsaturated Aldehydes Enabled by N-Heterocyclic Carbene Catalysis.

Tang W, Du D.

Chem Rec. 2016 Jun;16(3):1489-500. doi: 10.1002/tcr.201600018. Epub 2016 May 17.

PMID:
27185290
17.

N-Heterocyclic carbene-catalyzed oxidative [3 + 2] annulation of dioxindoles and enals: cross coupling of homoenolate and enolate.

Chen XY, Chen KQ, Sun DQ, Ye S.

Chem Sci. 2017 Mar 1;8(3):1936-1941. doi: 10.1039/c6sc04135c. Epub 2016 Nov 9.

18.

Recent advances in N-heterocyclic carbene catalyzed achiral synthesis.

Ren Q, Li M, Yuan L, Wang J.

Org Biomol Chem. 2017 Jun 14;15(22):4731-4749. doi: 10.1039/c7ob00568g. Epub 2017 May 25.

PMID:
28540374
19.

Asymmetric N-heterocyclic carbene (NHC)-catalyzed annulation of modified enals with enolizable aldehydes.

Yetra SR, Kaicharla T, Kunte SS, Gonnade RG, Biju AT.

Org Lett. 2013 Oct 18;15(20):5202-5. doi: 10.1021/ol4026155. Epub 2013 Oct 4.

PMID:
24093887
20.

N-heterocyclic carbene catalyzed reaction of phthalaldehydes: controllable stereoselective synthesis of polyhydroxylated spiro- and fused indenones dictated by the structure of NHC catalysts.

Cheng Y, Peng JH, Li YJ, Shi XY, Tang MS, Tan TY.

J Org Chem. 2011 Mar 18;76(6):1844-51. doi: 10.1021/jo102582a. Epub 2011 Feb 22.

PMID:
21341805

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