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Synthesis 2005(12): 2055-2060
DOI: 10.1055/s-2005-870017
DOI: 10.1055/s-2005-870017
SPECIALTOPIC
© Georg Thieme Verlag Stuttgart · New YorkDiallene Formation by Copper(I)-Mediated Reactions of Zirconacyclopentanes with Propargyl Halides
Further Information
Received
14 February 2005
Publication Date:
07 July 2005 (online)
Publication History
Publication Date:
07 July 2005 (online)

Abstract
In the presence of CuCl, zirconacyclopentanes reacted with two equivalents of a propargyl halide to give bisallenylation products in moderate to high yields. By controlling the amount of CuCl, stepwise allenylation was achieved and a variety of unsymmetrically substituted diallene derivatives were prepared as well.
Key words
propargyl electrophile - zirconacyclopentane - allene - SN2′ reaction - copper(I) chloride
- 1
Takahashi T.Kotora M.Kasai K.Suzuki N. Organometallics 1994, 13: 4183 - 2
Kotora M.Noguchi Y.Takahashi T. Collect. Czech. Chem. Commun. 1999, 64: 1119 - For copper-mediated C-C bond formation, see:
- 3a
Takahashi T.Kotora M.Xi Z. J. Chem. Soc., Chem. Commun. 1995, 1503 - 3b
Takahashi T.Nishihara Y.Hara R.Huo S.Kotora M. Chem. Commun. 1997, 1599 - 3c
Liu Y.Xi C.Hara R.Nakajima K.Yamazaki A.Kotora M.Takahashi T. J. Org. Chem. 2000, 65: 6951 - 3d
Lipshutz BH.Ellsworth E. J. Am. Chem. Soc. 1990, 112: 7440 - 3e
Babiak KA.Behling JR.Dygos JH.McLanghlin KT.Ng JS.Kalish VJ.Kramer SW.Shone RL. J. Am. Chem. Soc. 1990, 112: 7441 - 3f
Lipshutz BH.Hato K. Tetrahedron Lett. 1991, 32: 5647 - 3g
Lipshutz BH.Fatheree P.Hagan W.Stevens KL. Tetrahedron Lett. 1992, 33: 1041 - 3h
Lipshutz BH.Keil R. J. Am. Chem. Soc. 1992, 114: 7919 - 3i
Lipshutz BH.Wood MR. J. Am. Chem. Soc. 1993, 115: 12625 - For transmetallation of alkylzirconocene to copper, see:
- 4a
Wipf P.Smitrovich JH. J. Org. Chem. 1991, 56: 6494 - 4b
Venanzi LM.Lehmann R.Keil R.Lipshutz BH. Tetrahedron Lett. 1992, 33: 5857 - 4c
Wipf P.Smitrovich JH.Moon C.-W. J. Org. Chem. 1992, 57: 3178 - 4d
Wipf P.Xu WJ.Smitrovich JH.Lehmann R.Venanzi LM. Tetrahedron 1994, 50: 1935 - 4e
Kasai K.Kotora M.Suzuki N.Takahashi T. J. Chem. Soc., Chem. Commun. 1995, 109 - SN2′ substitutions on propargyl electrophiles giving allenes have been well-established. However, in many cases, it has been encountered selectivity problems between the SN2′ and SN2 pathways, see:
- 5a
Hopf H. In The Chemistry of Ketenes, Allenes, and Related CompoundsPatai S. Wiley-Interscience; Chichester: 1980. p.783 - 5b
Landor PD. In The Chemistry of the AllenesLandor SR. Academic Press; London: 1982. p.19 - 5c
Sandler SR.Karo W. Organic Functional Group Preparations Vol. II, 2nd Ed.: Academic Press; London: 1986. p.13 - 5d
Brandsma L. Synthesis of Acetylenes, Allenes and Cumulenes: Methods and Techniques Elsevier; Amsterdam: 2004. p.235 - 5e
Hoffmann-Röder A.Krause N. In Modern Allene ChemistryKrause N.Hashmi ASK. Wiley-VCH; Weinheim: 2004. p.51 - For preparation and reactions of bisallenic compounds, see:
- 6a
Hopf H. In The Chemistry of Ketenes, Allenes, and Related CompoundsPatai S. Wiley-Interscience; Chichester: 1980. p.799 - 6b
Landor PD. In The Chemistry of the AllenesLandor SR. Academic Press; London: 1982. p.223 - 6c
Schuster HF.Coppola GM. Allenes in Organic Synthesis Wiley-Interscience; New York: 1984. p.125 - 6d
Hopf H. In Modern Allene ChemistryKrause N.Hashmi ASK. Wiley-VCH; Weinheim: 2004. p.199 - 7a
Negishi E.Cederbaum FE.Takahashi T. Tetrahedron Lett. 1986, 27: 2829 - 7b
Negishi E.Holms SJ.Tour JM.Miller JA.Cederbaum FE.Swanson DR.Takahashi T. J. Am. Chem. Soc. 1989, 111: 3336 - 8a
Rousset CJ.Swanson DR.Lamaty F.Negishi E. Tetrahedron Lett. 1989, 30: 5105 - 8b
Nugent WA.Taber DF. J. Am. Chem. Soc. 1989, 111: 6435 - 9a
Negishi E.Rousset CJ.Choueiry D.Maye JP.Suzuki N.Takahashi T. Inorg. Chim. Acta 1998, 280: 8 - 9b
Mirza-Aghayan M.Boukherroub R.Oba G.Manuel G.Koenig M. J. Organomet. Chem. 1998, 564: 61 - 9c
Liu Y.Shen B.Kotora M.Takahashi T. Angew. Chem. Int. Ed. 1999, 38: 949 - 10
Akita M.Yasuda H.Yamamoto H.Nakamura A. Polyhedron 1991, 10: 1