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Synthesis 2001(16): 2500-2520
DOI: 10.1055/s-2001-18713
DOI: 10.1055/s-2001-18713
FEATUREARTICLE
© Georg Thieme Verlag Stuttgart · New YorkTitanocene Catalysed 5-exo Cyclisations of Unsaturated Epoxides- Reagent Control in Radical Chemistry
Further Information
Received
10 August 2001
Publication Date:
05 August 2004 (online)
Publication History
Publication Date:
05 August 2004 (online)

Abstract
A synthetic route to carbocyclic and heterocyclic [3.3.0], [4.3.0] and [5.3.0] systems containing pyrrolidine and tetrahydro-furan units and various other tetrahydrofuran derivatives is presented. The products are of relevance for natural product synthesis and for the synthesis of biologically active compounds. The titanocene catalysed reactions utilises readily available unsaturated epoxides as substrates. A model explaining the diastereoselectivity of cyclisation is presented that should allow for rational design of more selective catalysts.
Key words
titanocene catatlysis - 5-exo cyclisations - epoxides - heterocyclic systems
- 1a
Giese B. Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds Pergamon Press; Oxford: 1986.Reference Ris Wihthout Link - 1b
Motherwell WB.Crich D. Free Radical Chain Reactions in Organic Synthesis Academic Press; London: 1991.Reference Ris Wihthout Link - 1c
Curran DP.Porter NA.Giese B. Stereochemistry of Radical Reactions VCH; Weinheim: 1996.Reference Ris Wihthout Link - 1d
Linker T.Schmittel M. Radikale und Radikalionen in der Organischen Synthese Wiley-VCH; Weinheim: 1998.Reference Ris Wihthout Link - 2
Giese B.Kopping B.Göbel T.Dickhaut J.Thoma G.Kulicke KJ.Trach F. In Organic ReactionsPaquette LA. Wiley; New York: 1996. p.301Reference Ris Wihthout Link - 3a
Beckwith ALJ. Tetrahedron 1981, 37: 3073 - 3b
Curran DP.Rakiewicz DM. Tetrahedron 1985, 41: 3943 - 3c
Spellmeyer DC.Houk KN. J. Org. Chem. 1987, 52: 959 - 3d
RajanBabu TV. Acc. Chem. Res. 1991, 24: 139 - For examples of these reactions in radical chemistry see the following reviews:
- 4a
Renaud P.Gerster M. Angew. Chem. Int. Ed. 1998, 37: 2562 ; Angew. Chem. 1998, 110, 2704 - 4b
Sibi MP.Porter NA. Acc. Chem. Res. 1999, 32: 163 - 4c
Gansäuer A.Bluhm H. Chem. Rev. 2000, 100: 2771 - 5a
Molander GA. Chem. Rev. 1992, 92: 29Reference Ris Wihthout Link - 5b
Molander GA.Harris CR. Chem. Rev. 1996, 96: 307Reference Ris Wihthout Link - 5c
Molander GA.Harris CR. Tetrahedron 1998, 54: 3321Reference Ris Wihthout Link - For recent reviews on the generation of epoxides see:
- 6a
Rao AS. In Comprehensive Organic Synthesis Vol. 7:Trost BM. Pergamon Press; New York: 1991. p.357-387 - 6b
Meunier B. Chem. Rev. 1992, 92: 1411 - 6c
Gansäuer A. Angew. Chem. Int. Ed. 1997, 36: 2591 ; Angew. Chem. 1997, 109, 2701 - For recent reviews on enantioselective epoxidations see:
- 7a
Katsuki T. In Comprehensive Asymmetric Catalysis Vol. 2: Jacobsen E. N., Pfaltz A. H., Yamamoto H. Springer; Berlin: 1999. p.513-538Reference Ris Wihthout Link - 7b
Jacobsen EN.Wu MH. In Comprehensive Asymmetric Catalysis Vol. 2:Jacobsen EN.Pfaltz AH.Yamamoto H. Springer; Berlin: 1999. p.649-678Reference Ris Wihthout Link - 7c
Aggarwal VK. In Comprehensive Asymmetric Catalysis Vol. 2:Jacobsen EN.Pfaltz AH.Yamamoto H. Springer; Berlin: 1999. p.679-696Reference Ris Wihthout Link - 8a
Nugent WA.RajanBabu TV. J. Am. Chem. Soc. 1988, 110: 8561Reference Ris Wihthout Link - 8b
RajanBabu TV.Nugent WA. J. Am. Chem. Soc. 1989, 111: 4525Reference Ris Wihthout Link - 8c
RajanBabu TV.Nugent WA.Beattie MS. J. Am. Chem. Soc. 1990, 112: 6408Reference Ris Wihthout Link - 8d
RajanBabu TV.Nugent WA. J. Am. Chem. Soc. 1994, 116: 986Reference Ris Wihthout Link - 9a
Clive DLJ.Magnusson SR. Tetrahedron Lett. 1995, 36: 15 - 9b
Clive DLJ.Magnusson SR.Manning HW.Mayhew DL. J. Org. Chem. 1996, 61: 2095 - 10
Lowinger TB.Weiler L. Can. J. Chem. 1990, 68: 1636 - 11a
Maiti G.Roy SC. J. Chem. Soc., Perkin Trans. 1 1996, 403Reference Ris Wihthout Link - 11b
Mandal PK.Maiti G.Roy SC. J. Org. Chem. 1998, 63: 2829Reference Ris Wihthout Link - 12
Fernández-Mateos A.Martin de la Nava E.Pascual Coca G.Ramos Silvo A.Rubio González R. Org. Lett. 1999, 1: 607 - 13a
Gansäuer A.Pierobon M.Bluhm H. Angew. Chem. Int. Ed. 1998, 37: 101 ; Angew. Chem. 1998, 110, 107Reference Ris Wihthout Link - 13b
Gansäuer A.Bluhm H. Chem Commun. 1998, 2143Reference Ris Wihthout Link - 13c
Gansäuer A.Bluhm H.Pierobon M. J. Am. Chem. Soc. 1998, 120: 12849Reference Ris Wihthout Link - 14a
Gansäuer A.Lauterbach T.Bluhm H.Noltemeyer M. Angew. Chem. Int. Ed. 1999, 38: 2909 ; Angew. Chem. 1999, 111, 3112 - 14b
Gansäuer A.Bluhm H.Pierobon M.Keller M. Organometallics 2001, 20: 914 - 15
Gansäuer A.Pierobon M. Synlett 2000, 1357 - 16
Mino T.Masuda S.Nishio M.Yamashita M. J. Org. Chem. 1997, 62: 2633 - 17
Corey EJ.Chaykovsky M. Org. Synth., Coll., Vol. 5 1973, 5: 755 - 18
Paquette LA.Teleha CA.Taylor RT.Maynard GD.Rogers RD.Gallucci JC.Springer JP. J. Am. Chem. Soc. 1990, 112: 265 - 19
Rao AS.Mohan HR. In Handbook of Reagents for Organic Synthesis, Oxidizing and Reducing Agents Vol. 7:Burke SD.Danheiser RL. Wiley; New York: 1999. p.394Reference Ris Wihthout Link - 20
Michnick TJ.Matteson DS. Synlett 1991, 631 - 21
Begley MJ.Ladlow M.Pattenden G. J. Chem. Soc., Perkin. Trans. 1 1988, 1095 - 22
Omura K.Swern D. Tetrahedron 1978, 34: 1651 - 23
Dreiding AS.Hartman JA. J. Am. Chem. Soc. 1953, 75: 939 - 24a
Rudolph J.Reddy KL.Chiang JP.Sharpless KB. J. Am. Chem. Soc. 1997, 119: 6189 - 24b
Copéret C.Adolfsson H.Sharpless KB. Chem. Commun. 1997, 1565 - 25
Overman LE.Flippin LA. Tetrahedron Lett. 1981, 22: 195 - 26
Whitaker DT.Whitaker KS.Johnson CR. In Handbook of Reagents for Organic Synthesis, Activating Agents and Protecting Groups Vol. 7:Pearson AJ.Roush WJ. Wiley; New York: 1999. p.394Reference Ris Wihthout Link - 27a
Herscovici J.Antonakis K. J. Chem. Soc., Chem. Commun. 1980, 561 - 27b
Herscovici J.Egron M.-J.Antonakis K. J. Chem. Soc., Perkin Trans. 1 1982, 1967 - 28
Clive DLJ.Beaulieu PL.Set LJ. J. Org. Chem. 1984, 49: 1313 - 29a
Fessenden RW.Shuler RH. J. Chem. Phys. 1963, 39: 2147 - 29b
Chatgilialoglu C. In The Chemistry of Triple-Bonded Functional Groups: Supplement C2Patai S. Wiley; New York: 1994. p.917 - For recent reviews see:
- 30a
Marson CM. Tetrahedron 2000, 56: 8779 - 30b
Wendt KU.Schulz GE.Corey EJ.Liu DR. Angew. Chem. Int. Ed. 2000, 39: 2812 ; Angew. Chem. 2000, 112, 2930 - For recent work see:
- 31a
Corey EJ.Luo G.Lin LS. Angew. Chem. Int. Ed. 1998, 37: 1126 ; Angew. Chem. 1998, 110, 1147 - 31b
Aggarwal VK.Bethel PA.Giles RJ. Chem. Commun. 1999, 325 - 32
Beckwith ALJ.Schiesser CH. Tetrahedron 1985, 41: 3925Reference Ris Wihthout Link - 33
Still WC.Kahn A.Mitra A. J. Org. Chem. 1978, 43: 2923 - 34
Molander GA.Cameron KO. J. Org. Chem. 1993, 58: 5931Reference Ris Wihthout Link - 35
Borowitz IJ.Williams GJ.Gross L.Beller H.Kurland D.Suciu N.Bandurco V.Rigby RDG. J. Org. Chem. 1972, 37: 581 - 36a
Pattenden G.Robertson GM. Tetrahedron 1985, 41: 4001 - 36b
Shono T.Nishiguchi I.Omizu H. Chem. Lett. 1976, 1233 - 37
Posner GH.Rogers DZ. J. Am. Chem. Soc. 1977, 99: 8208 - 38
Desmaele D.Champion N. Tetrahedron Lett. 1992, 4447 - 39
Goshh S.Raychaudhuri SR.Salomon RG. J. Org. Chem. 1987, 52: 83 - 40
Charette AB.Marcoux JF. Tetrahedron Lett 1993, 34: 7157 - 41
Hart H.Chen B.Jeffares M. J. Org. Chem. 1979, 44: 2722 - 42
Sato Y.Sodeoka M.Shibasaki M. J. Org. Chem. 1989, 54: 4738Reference Ris Wihthout Link - 43
Guiles JW.Meyers AI. J. Org. Chem. 1991, 56: 6873 - 44
Lansbury PT.Demmin TR.DuBois GE. J. Am. Chem. Soc. 1975, 97: 394 - 45
Bergmann E.Bergmann F. J. Am. Chem. Soc. 1937, 59: 1443