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Results: 1 to 20 of 150

1.

A general and regioselective synthesis of 5-trifluoromethyl-pyrazoles.

Foster RS, Jakobi H, Harrity JP.

Org Lett. 2012 Sep 21;14(18):4858-61. Epub 2012 Aug 30.

PMID:
22934538
[PubMed - indexed for MEDLINE]
2.

Regioselective one-step synthesis of pyrazoles from alkynes and N-tosylhydrazones: [3+2] dipolar cycloaddition/[1,5] sigmatropic rearrangement cascade.

Pérez-Aguilar MC, Valdés C.

Angew Chem Int Ed Engl. 2013 Jul 8;52(28):7219-23. doi: 10.1002/anie.201301284. Epub 2013 Jun 5. No abstract available.

PMID:
23740890
[PubMed - indexed for MEDLINE]
3.

A modular sydnone cycloaddition/Suzuki-Miyaura cross-coupling strategy to unsymmetrical 3,5-bis(hetero)aromatic pyrazoles.

Delaunay T, Genix P, Es-Sayed M, Vors JP, Monteiro N, Balme G.

Org Lett. 2010 Aug 6;12(15):3328-31. doi: 10.1021/ol101087j.

PMID:
20597542
[PubMed - indexed for MEDLINE]
4.

Ruthenium-catalyzed regioselective [2 + 2 + 2] cyclotrimerization of trifluoromethyl group substituted internal alkynes.

Kawatsura M, Yamamoto M, Namioka J, Kajita K, Hirakawa T, Itoh T.

Org Lett. 2011 Mar 4;13(5):1001-3. doi: 10.1021/ol1030734. Epub 2011 Feb 2.

PMID:
21288010
[PubMed - indexed for MEDLINE]
5.

Reactivity of a hypervalent iodine trifluoromethylating reagent toward THF: ring opening and formation of trifluoromethyl ethers.

Fantasia S, Welch JM, Togni A.

J Org Chem. 2010 Mar 5;75(5):1779-82. doi: 10.1021/jo9025429.

PMID:
20121229
[PubMed - indexed for MEDLINE]
6.

Chlorodifluoromethyl phenyl sulfone: a novel non-ozone-depleting substance-based difluorocarbene reagent for O- and N-difluoromethylations.

Zheng J, Li Y, Zhang L, Hu J, Meuzelaar GJ, Federsel HJ.

Chem Commun (Camb). 2007 Dec 28;(48):5149-51. Epub 2007 Oct 16.

PMID:
18060124
[PubMed - indexed for MEDLINE]
7.

Regioselective formation of tetrahydroselenophenes via 5-exo-dig-cyclization of 1-butylseleno-4-alkynes.

Gai RM, Schumacher RF, Back DF, Zeni G.

Org Lett. 2012 Dec 7;14(23):6072-5. doi: 10.1021/ol302919b. Epub 2012 Nov 19.

PMID:
23163823
[PubMed - indexed for MEDLINE]
8.

Synthesis of 4-fluoromethylsydnones and their participation in alkyne cycloaddition reactions.

Foster RS, Adams H, Jakobi H, Harrity JP.

J Org Chem. 2013 Apr 19;78(8):4049-64. doi: 10.1021/jo400381a. Epub 2013 Apr 10.

PMID:
23548035
[PubMed - indexed for MEDLINE]
9.

Concise preparation of 2,2-difluorohomopropargyl carbonyl derivatives. Application to the synthesis of 4,4-difluoroisoquinolinone congeners.

Arimitsu S, Fernandez B, Pozo CD, Fustero S, Hammond GB.

J Org Chem. 2008 Apr 4;73(7):2656-61. doi: 10.1021/jo7025965. Epub 2008 Mar 6.

PMID:
18321123
[PubMed - indexed for MEDLINE]
10.

Electrophilic trifluoromethylation by copper-catalyzed addition of CF3-transfer reagents to alkenes and alkynes.

Janson PG, Ghoneim I, Ilchenko NO, Szabó KJ.

Org Lett. 2012 Jun 1;14(11):2882-5. doi: 10.1021/ol3011419. Epub 2012 May 21.

PMID:
22612441
[PubMed - indexed for MEDLINE]
11.

Silver-catalyzed regioselective carbomagnesiation of alkynes with alkyl halides and Grignard reagents.

Kambe N, Moriwaki Y, Fujii Y, Iwasaki T, Terao J.

Org Lett. 2011 Sep 2;13(17):4656-9. doi: 10.1021/ol2018664. Epub 2011 Aug 1.

PMID:
21806040
[PubMed - indexed for MEDLINE]
12.

Diversity-oriented synthesis of disubstituted alkenes using masked silanols.

Sore HF, Blackwell DT, Macdonald SJ, Spring DR.

Org Lett. 2010 Jun 18;12(12):2806-9. doi: 10.1021/ol100895d.

PMID:
20491504
[PubMed - indexed for MEDLINE]
13.

Iron-catalyzed preparation of trifluoromethyl substituted vinyl- and alkynylcyclopropanes.

Morandi B, Cheang J, Carreira EM.

Org Lett. 2011 Jun 17;13(12):3080-1. doi: 10.1021/ol200983s. Epub 2011 May 17.

PMID:
21591649
[PubMed - indexed for MEDLINE]
14.

Silver-mediated cycloaddition of alkynes with CF3CHN2: highly regioselective synthesis of 3-trifluoromethylpyrazoles.

Li F, Nie J, Sun L, Zheng Y, Ma JA.

Angew Chem Int Ed Engl. 2013 Jun 10;52(24):6255-8. doi: 10.1002/anie.201301870. Epub 2013 Apr 24. No abstract available.

PMID:
23616303
[PubMed - indexed for MEDLINE]
15.

Regioselective synthesis of 1,3,5-trisubstituted pyrazoles from N-alkylated tosylhydrazones and terminal alkynes.

Kong Y, Tang M, Wang Y.

Org Lett. 2014 Jan 17;16(2):576-9. doi: 10.1021/ol403447g. Epub 2013 Dec 20.

PMID:
24432814
[PubMed - indexed for MEDLINE]
16.

Synthesis of trifluoromethylated isoxazolidines: 1,3-dipolar cycloaddition of nitrosoarenes, (trifluoromethyl)diazomethane, and alkenes.

Molander GA, Cavalcanti LN.

Org Lett. 2013 Jun 21;15(12):3166-9. doi: 10.1021/ol401402d. Epub 2013 Jun 11.

PMID:
24490778
[PubMed - indexed for MEDLINE]
Free PMC Article
17.

Tandem asymmetric Michael reaction-intramolecular Michael addition. An easy entry to chiral fluorinated 1,4-dihydropyridines.

Fustero S, Catalán S, Sánchez-Roselló M, Simón-Fuentes A, del Pozo C.

Org Lett. 2010 Aug 6;12(15):3484-7. doi: 10.1021/ol101318t.

PMID:
20617822
[PubMed - indexed for MEDLINE]
18.

An efficient strategy for the general synthesis of 3-aryl substituted pyrazolo[5,1-c][1,4]benzoxazines and pyrazolo[1,5-a][1,4]benzodiazepin-6(4H)-ones.

Brahma K, Sasmal AK, Chowdhury C.

Org Biomol Chem. 2011 Dec 21;9(24):8422-9. doi: 10.1039/c1ob06353g. Epub 2011 Oct 26.

PMID:
22027753
[PubMed - indexed for MEDLINE]
19.

Rhenium- and manganese-catalyzed synthesis of aromatic compounds from 1,3-dicarbonyl compounds and alkynes.

Kuninobu Y, Nishi M, Kawata A, Takata H, Hanatani Y, Yudha SS, Iwai A, Takai K.

J Org Chem. 2010 Jan 15;75(2):334-41. doi: 10.1021/jo902072q.

PMID:
20000351
[PubMed - indexed for MEDLINE]
20.

Metal-free reactions of alkynes via electrophilic iodocarbocyclizations.

Palisse A, Kirsch SF.

Org Biomol Chem. 2012 Oct 28;10(40):8041-7. Review.

PMID:
22987122
[PubMed - indexed for MEDLINE]

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