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Results: 1 to 20 of 123

1.

Catalytic asymmetric synthesis of γ-butenolides by direct vinylogous reactions.

Yan L, Wu X, Liu H, Xie L, Jiang Z.

Mini Rev Med Chem. 2013 May 1;13(6):845-53. Review.

PMID:
23544459
[PubMed - indexed for MEDLINE]
2.

Organocatalytic asymmetric direct vinylogous aldol reactions of γ-crotonolactone with aromatic aldehydes.

Pansare SV, Paul EK.

Chem Commun (Camb). 2011 Jan 21;47(3):1027-9. doi: 10.1039/c0cc04191b. Epub 2010 Nov 10.

PMID:
21069217
[PubMed - indexed for MEDLINE]
3.
4.

Asymmetric vinylogous Mannich reaction of silyloxy furans with N-tert-butanesulfinyl ketimines.

Rao VU, Jadhav AP, Garad D, Singh RP.

Org Lett. 2014 Feb 7;16(3):648-51. doi: 10.1021/ol4037117. Epub 2014 Jan 17.

PMID:
24437720
[PubMed - indexed for MEDLINE]
5.

Development of metal/organo catalytic systems for direct vinylogous Michael reactions to build chiral γ,γ-disubstituted butenolides.

Yang D, Wang L, Zhao D, Han F, Zhang B, Wang R.

Chemistry. 2013 Apr 8;19(15):4691-4. doi: 10.1002/chem.201204466. Epub 2013 Mar 4. No abstract available. Erratum in: Chemistry. 2013 Dec 23;19(52):17632.

PMID:
23460498
[PubMed - indexed for MEDLINE]
6.

Catalytic, asymmetric synthesis of phosphonic γ-(hydroxyalkyl)butenolides with contiguous quaternary and tertiary stereogenic centers.

Frings M, Thomé I, Schiffers I, Pan F, Bolm C.

Chemistry. 2014 Feb 3;20(6):1691-700. doi: 10.1002/chem.201304331. Epub 2014 Jan 8.

PMID:
24402962
[PubMed - indexed for MEDLINE]
7.

Catalytic enantioselective synthesis of naturally occurring butenolides via hetero-allylic alkylation and ring closing metathesis.

Mao B, Geurts K, Fañanás-Mastral M, van Zijl AW, Fletcher SP, Minnaard AJ, Feringa BL.

Org Lett. 2011 Mar 4;13(5):948-51. doi: 10.1021/ol102994q. Epub 2011 Jan 26.

PMID:
21268603
[PubMed - indexed for MEDLINE]
8.

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 19;12(4):720-3. doi: 10.1021/ol100014m.

PMID:
20104883
[PubMed - indexed for MEDLINE]
9.

Highly enantioselective synthesis of γ-substituted butenolides via the vinylogous Mukaiyama-Michael reaction catalyzed by a chiral scandium(III)-N,N'-dioxide complex.

Zhang Q, Xiao X, Lin L, Liu X, Feng X.

Org Biomol Chem. 2011 Aug 21;9(16):5748-54. doi: 10.1039/c1ob05558e. Epub 2011 Jun 30.

PMID:
21717015
[PubMed - indexed for MEDLINE]
10.

Synthesis of 5,5-disubstituted butenolides based on a Pd-catalyzed gamma-arylation strategy.

Hyde AM, Buchwald SL.

Org Lett. 2009 Jun 18;11(12):2663-6. doi: 10.1021/ol9007102.

PMID:
19449882
[PubMed - indexed for MEDLINE]
Free PMC Article
11.

Direct catalytic asymmetric Mannich-type reactions of gamma-butenolides: effectiveness of Brønsted acid in chiral metal catalysis.

Yamaguchi A, Matsunaga S, Shibasaki M.

Org Lett. 2008 Jun 5;10(11):2319-22. doi: 10.1021/ol800756r. Epub 2008 May 7.

PMID:
18459795
[PubMed - indexed for MEDLINE]
12.

Catalytic asymmetric vinylogous Mannich-type (AVM) reaction of nonactivated α-angelica lactone.

Zhou L, Lin L, Ji J, Xie M, Liu X, Feng X.

Org Lett. 2011 Jun 17;13(12):3056-9. doi: 10.1021/ol200939t. Epub 2011 May 19.

PMID:
21595425
[PubMed - indexed for MEDLINE]
13.

Efficient direct asymmetric vinylogous Michael addition reactions of gamma-butenolides to chalcones catalyzed by vicinal primary-diamine salts.

Wang J, Qi C, Ge Z, Cheng T, Li R.

Chem Commun (Camb). 2010 Mar 28;46(12):2124-6. doi: 10.1039/b923925a. Epub 2010 Feb 19.

PMID:
20221513
[PubMed - indexed for MEDLINE]
14.

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 28;46(32):5957-9. doi: 10.1039/c0cc01054e. Epub 2010 Jul 2.

PMID:
20601978
[PubMed - indexed for MEDLINE]
15.

Asymmetric olefin isomerization of butenolides via proton transfer catalysis by an organic molecule.

Wu Y, Singh RP, Deng L.

J Am Chem Soc. 2011 Aug 17;133(32):12458-61. doi: 10.1021/ja205674x. Epub 2011 Jul 22. Erratum in: J Am Chem Soc. 2011 Sep 28;133(38):15219.

PMID:
21766859
[PubMed - indexed for MEDLINE]
Free PMC Article
16.

Novel synthons from mucochloric acid: the first use of alpha,beta-dichloro-gamma-butenolides and gamma-butyrolactams for direct vinylogous aldol addition.

Das Sarma K, Zhang J, Curran TT.

J Org Chem. 2007 Apr 27;72(9):3311-8. Epub 2007 Mar 31.

PMID:
17397224
[PubMed - indexed for MEDLINE]
17.

Stereoselective rhodium-catalyzed conjugate addition of boronic acids to unprotected delta-hydroxy-gamma-butenolides. Synthesis of (-)-7-oxamuricatacin and beta-substituted derivatives.

Navarro C, Moreno A, Csákÿ AG.

J Org Chem. 2009 Jan 2;74(1):466-9. doi: 10.1021/jo8022395.

PMID:
19053603
[PubMed - indexed for MEDLINE]
18.

Direct catalytic asymmetric vinylogous Mannich-type reaction of γ-butenolides with ketimines.

Yin L, Takada H, Kumagai N, Shibasaki M.

Angew Chem Int Ed Engl. 2013 Jul 8;52(28):7310-3. doi: 10.1002/anie.201303119. Epub 2013 May 29. No abstract available.

PMID:
23720436
[PubMed - indexed for MEDLINE]
19.

The direct asymmetric vinylogous aldol reaction of furanones with α-ketoesters: access to chiral γ-butenolides and glycerol derivatives.

Luo J, Wang H, Han X, Xu LW, Kwiatkowski J, Huang KW, Lu Y.

Angew Chem Int Ed Engl. 2011 Feb 18;50(8):1861-4. doi: 10.1002/anie.201006316. Epub 2011 Jan 11. No abstract available.

PMID:
21328657
[PubMed - indexed for MEDLINE]
20.

Catalytic asymmetric direct vinylogous Michael addition of deconjugated butenolides to maleimides for the construction of quaternary stereogenic centers.

Manna MS, Mukherjee S.

Chemistry. 2012 Nov 26;18(48):15277-82. doi: 10.1002/chem.201203180. Epub 2012 Nov 6. No abstract available.

PMID:
23132771
[PubMed - indexed for MEDLINE]

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