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Results: 1 to 20 of 157

1.

Sequential functionalization of pyrazole 1-oxides via regioselective metalation: synthesis of 3,4,5-trisubstituted 1-hydroxypyrazoles.

Paulson AS, Eskildsen J, Vedsø P, Begtrup M.

J Org Chem. 2002 May 31;67(11):3904-7.

PMID:
12027711
[PubMed - indexed for MEDLINE]
2.

Regioselective Introduction of Electrophiles in the 4-Position of 1-Hydroxypyrazole via Bromine-Lithium Exchange.

Balle T, Vedsø P, Begtrup M.

J Org Chem. 1999 Jul 23;64(15):5366-5370.

PMID:
11674594
[PubMed - as supplied by publisher]
3.

Convergent synthesis of 3-arylated 1-hydroxypyrazoles via 3-metalated pyrazole-1-oxides.

Eskildsen J, Kristensen J, Vedsø P, Begtrup M.

J Org Chem. 2001 Dec 14;66(25):8654-6. No abstract available.

PMID:
11735553
[PubMed - indexed for MEDLINE]
4.

Synthesis of 1-hydroxy-substituted pyrazolo[3,4-c]- and pyrazolo[4, 3-c]quinolines and -isoquinolines from 4- and 5-aryl-substituted 1-benzyloxypyrazoles.

Pawlas J, Vedsø P, Jakobsen P, Huusfeldt PO, Begtrup M.

J Org Chem. 2000 Dec 29;65(26):9001-6.

PMID:
11149843
[PubMed - indexed for MEDLINE]
5.

Synthesis of fully substituted pyrazoles via regio- and chemoselective metalations.

Despotopoulou C, Klier L, Knochel P.

Org Lett. 2009 Aug 6;11(15):3326-9. doi: 10.1021/ol901208d.

PMID:
19580307
[PubMed - indexed for MEDLINE]
6.

Synthesis of functionalized pyridazin-3(2H)-ones via bromine-magnesium exchange on bromopyridazin-3(2H)-ones.

Ryabtsova O, Verhelst T, Baeten M, Vande Velde CM, Maes BU.

J Org Chem. 2009 Dec 18;74(24):9440-5. doi: 10.1021/jo9020985.

PMID:
19928756
[PubMed - indexed for MEDLINE]
7.

Variable coordination behaviour of pyrazole-containing N,P and N,P(O) ligands towards palladium(II).

Kealey S, Long NJ, Miller PW, White AJ, Hitchcock PB, Gee A.

Dalton Trans. 2007 Jul 14;(26):2823-32. Epub 2007 May 2.

PMID:
17592599
[PubMed - indexed for MEDLINE]
8.

Regio- and chemoselective synthesis of fully substituted thiophenes.

Piller FM, Knochel P.

Org Lett. 2009 Jan 15;11(2):445-8. doi: 10.1021/ol802513q.

PMID:
19099513
[PubMed - indexed for MEDLINE]
9.

Regioselective functionalization of the thiazole scaffold using TMPMgCl·LiCl and TMP2Zn·2MgCl2·2LiCl.

Dunst C, Knochel P.

J Org Chem. 2011 Aug 19;76(16):6972-8. doi: 10.1021/jo201250n. Epub 2011 Jul 26.

PMID:
21736384
[PubMed - indexed for MEDLINE]
10.

Insights into the mechanism of the site-selective sequential palladium-catalyzed cross-coupling reactions of dibromothiophenes/dibromothiazoles and arylboronic acids. Synthesis of PPARbeta/delta agonists.

Pereira R, Furst A, Iglesias B, Germain P, Gronemeyer H, de Lera AR.

Org Biomol Chem. 2006 Dec 21;4(24):4514-25. Epub 2006 Nov 13.

PMID:
17268648
[PubMed - indexed for MEDLINE]
11.

Efficient synthesis and first regioselective C-3 direct arylation of imidazo[1,2-b]pyrazoles.

Grosse S, Pillard C, Massip S, Léger JM, Jarry C, Bourg S, Bernard P, Guillaumet G.

Chemistry. 2012 Nov 19;18(47):14943-7. doi: 10.1002/chem.201202593. Epub 2012 Oct 19.

PMID:
23086664
[PubMed - indexed for MEDLINE]
12.

Regio- and chemoselective metalation of chloropyrimidine derivatives with TMPMgCl x LiCl and TMP(2)Zn x 2 MgCl(2) x 2 LiCl.

Mosrin M, Knochel P.

Chemistry. 2009;15(6):1468-77. doi: 10.1002/chem.200801831.

PMID:
19115285
[PubMed - indexed for MEDLINE]
13.

Palladium-catalyzed phosphonylation: synthesis of C3-, C4-, and C5-phosphonylated pyrazoles.

Tran G, Gomez Pardo D, Tsuchiya T, Hillebrand S, Vors JP, Cossy J.

Org Lett. 2013 Nov 1;15(21):5550-3. doi: 10.1021/ol402717b. Epub 2013 Oct 16.

PMID:
24131425
[PubMed - indexed for MEDLINE]
14.

Synthesis of substituted imidazo[1,5-a]pyrazines via mono-, di-, and directed remote metalation strategies.

Board J, Wang JX, Crew AP, Jin M, Foreman K, Mulvihill MJ, Snieckus V.

Org Lett. 2009 Nov 19;11(22):5118-21. doi: 10.1021/ol901889e.

PMID:
19842687
[PubMed - indexed for MEDLINE]
15.

Direct zincation of functionalized aromatics and heterocycles by using a magnesium base in the presence of ZnCl2.

Dong Z, Clososki GC, Wunderlich SH, Unsinn A, Li J, Knochel P.

Chemistry. 2009;15(2):457-68. doi: 10.1002/chem.200801558.

PMID:
19035380
[PubMed - indexed for MEDLINE]
16.

C-H bond functionalization under metalation-deprotonation process: regioselective direct arylation of 3-aminoimidazo[1,2-a]pyrazine.

Guchhait SK, Kandekar S, Kashyap M, Taxak N, Bharatam PV.

J Org Chem. 2012 Sep 21;77(18):8321-8. Epub 2012 Sep 7.

PMID:
22928611
[PubMed - indexed for MEDLINE]
17.

Synthesis of biindolizines through highly regioselective palladium-catalyzed C-H functionalization.

Xia JB, Wang XQ, You SL.

J Org Chem. 2009 Jan 2;74(1):456-8. doi: 10.1021/jo802227u.

PMID:
19053600
[PubMed - indexed for MEDLINE]
18.
19.

Regioselective functionalization of trisubstituted pyridines using a bromine-magnesium exchange.

Ren H, Knochel P.

Chem Commun (Camb). 2006 Feb 21;(7):726-8. Epub 2005 Dec 23.

PMID:
16465320
[PubMed]
20.

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