Subscribe to RSS
DOI: 10.1055/s-0030-1260256
One-Pot Click Synthesis of 1N-Alkyl-4-aryl-1,2,3-triazoles from Protected Arylalkynes and Alkyl Bromides
Publication History
Publication Date:
06 October 2011 (online)
Abstract
1N-Alkyl-4-aryl-1,2,3-triazoles have been prepared through a multicomponent one-pot protocol from the corresponding (arylethynyl)trimethylsilanes and alkyl bromides. In situ alkyl azide formation and alkyne deprotection followed by copper(I)-catalyzed click cycloaddition afforded the desired 1,4-disubstituted 1,2,3-triazoles in generally good to excellent yield, with only minor observation of the undesired 1,5-regioisomeric cycloadduct. The protocol eliminates the need to use reactive organic azides and terminal alkynes.
Key words
click chemistry - Huisgen cycloaddition - triazoles - alkynes - azides
-
1a
Tornøe CW.Christensen C.Meldal M. J. Org. Chem. 2002, 67: 3057 -
1b
Rostovtsev VV.Green LG.Fokin VV.Sharpless KB. Angew. Chem. Int. Ed. 2002, 41: 2596 - 2
Huisgen R. Angew. Chem., Int. Ed. Engl. 1963, 2: 565 - 3
Kolb HC.Finn MG.Sharpless KB. Angew. Chem. Int. Ed. 2001, 40: 2004 - For recent reviews on the CuAAC reaction, see:
-
4a
Meldal M.Tornøe CW. Chem. Rev. 2008, 108: 2952 -
4b
Kappe CO.Van der Eycken E. Chem. Soc. Rev. 2010, 39: 1280 -
4c
Hein JE.Fokin VV. Chem. Soc. Rev. 2010, 39: 1302 - 5
Chan TR.Hilgraf R.Sharpless KB.Fokin VV. Org. Lett. 2004, 6: 2853 -
6a
Lutz J.-F. Angew. Chem. Int. Ed. 2007, 46: 1018 -
6b
Golas PL.Matyjaszewski K. Chem. Soc. Rev. 2010, 39: 1338 - 7
Soriano del Amo D.Wang W.Jiang H.Besanceney C.Yan AC.Levy M.Liu Y.Marlow FL.Wu P. J. Am. Chem. Soc. 2010, 132: 16893 - For a review on the use of click chemistry in the pharmaceutical industry, see:
-
8a
Kolb HC.Sharpless KB. Drug Discovery Today 2003, 8: 1128 - For a special issue on click chemistry and its applications, see:
-
8b
QSAR Comb. Sci.
2007,
26:
1111
- 9
Struthers H.Mindt TL.Schibli R. Dalton Trans. 2010, 39: 675 -
10a
Felici M.Contreras-Carballada P.Vida Y.Smits JMM.Nolte RJM.De Cola L.Williams RM.Feiters MC. Chem. Eur. J. 2009, 15: 13124 -
10b
Li Y.Huffman JC.Flood AH. Chem. Commun. 2007, 2692 -
10c
Orselli E.Albuquerque RQ.Fransen PM.Fröhlich R.Janssen HM.De Cola L. J. Mater. Chem. 2008, 18: 4579 -
10d
Fletcher JT.Bumgarner BJ.Engels ND.Skoglund DA. Organometallics 2008, 27: 5430 -
10e
Happ B.Escudero D.Hager MD.Friebe C.Winter A.Görls H.Altuntas E.González L.Schubert US. J. Org. Chem. 2010, 75: 4025 -
10f
Richardson C.Fitchett CM.Keene FR.Steel PJ. Dalton Trans. 2008, 2534 -
10g
Stengel I.Mishra A.Pootrakulchote N.Moon S.-J.Zakeeruddin SM.Grätzel M.Bauerle P. J. Mater. Chem. 2011, 21: 3726 -
10h
Juríček M.Felici M.Contreras-Carballada P.Lauko J.Rodríguez Bou S.Kouwer PHJ.Brouwer AM.Rowan AE. J. Mater. Chem. 2011, 21: 2104 -
10i
Juríček M.Kouwer PHJ.Rowan AE. Chem. Commun. 2011, 47: 8740 -
10j
Uppal BS.Booth RK.Ali N.Lockwood C.Rice CR.Elliott PIP. Dalton Trans. 2011, 40: 7610 -
10k
Kilpin KJ.Gavey EL.McAdam CJ.Anderson CB.Lind SJ.Keep CC.Gordon KC.Crowley JD. Inorg. Chem. 2011, 50: 6334 -
10l
Fleischel O.Wu N.Petitjean A. Chem. Commun. 2010, 46: 8454 -
11a
Beyer B.Ulbricht C.Escudero D.Friebe C.Winter A.González L.Schubert US. Organometallics 2009, 28: 5478 -
11b
Felici M.Contreras-Carballada P.Smits JMM.Nolte RJM.Williams RM.De Cola L.Feiters MC. Molecules 2010, 15: 2039 - See, for instance:
-
12a
Sharghi H.Khalifeh R.Doroodmand MM. Adv. Synth. Catal. 2009, 351: 207 -
12b
Appukkuttan P.Dehaen W.Fokin VV.Van der Eycken E. Org. Lett. 2004, 6: 4223 -
12c
Molander GA.Ham J. Org. Lett. 2006, 8: 2767 -
12d
Miao T.Wang L. Synthesis 2008, 363 -
12e
Díez-González S.Correa A.Cavallo L.Nolan SP. Chem. Eur. J. 2006, 12: 7558 -
12f
Feldman AK.Colasson B.Fokin VV. Org. Lett. 2004, 6: 3897 -
12g
Odlo K.Høydahl EA.Hansen TV. Tetrahedron Lett. 2007, 48: 2097 -
12h
Lal S.Díez-González S. J. Org. Chem. 2011, 76: 2367 -
12i
Crowley JD.Bandeen PH.Hanton LR. Polyhedron 2010, 29: 70 -
13a
Beltran E.Serrano JL.Sierra T.Giménez R. Org. Lett. 2010, 12: 1404 -
13b
Thibault RJ.Takizawa K.Lowenheilm P.Helms B.Mynar JL.Fréchet JMJ.Hawker CJ. J. Am. Chem. Soc. 2006, 128: 12084 -
13c
Friscourt F.Boons G.-J. Org. Lett. 2010, 12: 4936 - 14
Lörincz K.Kele P.Novák Z. Synthesis 2009, 3527 - 15
Crowley JD.Bandeen PH. Dalton Trans. 2010, 39: 612 - 17
Bräse S.Gil C.Knepper K.Zimmermann V. Angew. Chem. Int. Ed. 2005, 44: 5188 - 18
Ladouceur S.Fortin D.Zysman-Colman E. Inorg. Chem. 2010, 49: 5625 - 19
Lehmann U.Schlüter AD. Eur. J. Org. Chem. 2000, 3483 - 20
Hon Y.-S.Chang F.-J.Lu L.Lin W.-C. Tetrahedron 1998, 54: 5233 - 21
Dong Y.-B.Yang L.Cheung K.-K.Mayr A.
J. Organomet. Chem. 2000, 598: 55 - 22
Schwab PFH.Fleischer F.Michl J. J. Org. Chem. 2002, 67: 443 - 23
Spino C.Clouston L.Berg D. Can. J. Chem. 1996, 74: 1762 - 24
Liu P.Chen Y.Deng J.Tu Y. Synthesis 2001, 2078 - 25
Grosshenny V.Romero FM.Ziessel R. J. Org. Chem. 1997, 62: 1491 - 26
Gottardo C.Kraft TM.Hossain MS.Zawada PV.Muchall HM. Can. J. Chem. 2008, 86: 410 - 27
Campbell-Verduyn LS.Mirfeizi L.Dierckx RA.Elsinga PH.Feringa BL. Chem. Commun. 2009, 2139 - 28
Reddy KR.Rajgopal K.Kantam ML. Synlett 2006, 957 - 29
Kramer RA.Bröhmer MC.Forkel NV.Bannwarth W. Eur. J. Org. Chem. 2009, 4273 - 30
Gonda Z.Novak Z. Dalton Trans. 2010, 39: 726 - 31
Cote C.Kirss RU. Inorg. Chim. Acta 2010, 363: 2520 - 32
Kamijo S.Jin T.Huo Z.Yamamoto Y. J. Org. Chem. 2004, 69: 2386
References
Control reactions with 1g demonstrated the following: In the absence of pyridine, after 24 hours only a 20% deprotection was observed with a corresponding 20% conversion into 2g, as determined by GC-MS. In the absence of K2CO3, deprotection of 1g was completely arrested.