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I. Göttker-Schnetmann, R. Aumann, O. Kataeva, Ch. Holst, R. Fröhlich, Organometallics 2001, 20, 2889-2904.
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Göttker-Schnetmann, I.1
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b) R. Aumann, A. G. Meyer, R. Fröhlich, Organometallics 1996, 15, 5018-5827;
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Aumann, R.1
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e) R. Aumann, M. Kößmeier, Ch. Mück-Lichtenfels, F. Zippel, Eur. J. Org. Chem. 2000, 37-49.
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Aumann, R.1
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Zippel, F.4
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8
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0000044373
-
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For the basics of this π-cyclization reaction see: a) R. Aumann, H. Heinen, P. Hinterding, N. Sträter, B. Krebs, Chem. Ber. 1991, 124, 2343-2347;
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(1991)
Chem. Ber.
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Aumann, R.1
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Sträter, N.4
Krebs, B.5
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9
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0000672499
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b) R. Aumann, H. Heinen, P. Hinterding, N. Sträter, B. Krebs, Chem. Ber. 1991, 124, 1229-1236.
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(1991)
Chem. Ber.
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Aumann, R.1
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Krebs, B.5
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10
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0033986474
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For a recent review on 1-metalla-hexatrienes see: R. Aumann, Eur. J. Org. Chem. 2000, 17-31.
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(2000)
Eur. J. Org. Chem.
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Aumann, R.1
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0001223326
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b) A. de Meijere, H. Schirmer, M. Duetsch, Angew. Chem. 2000, 112, 4124-4162;
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De Meijere, A.1
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54749150737
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Angew. Chem. Int. Ed. 2000, 39, 3964-4002;
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(2000)
Angew. Chem. Int. Ed.
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, pp. 3964-4002
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14
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0035831103
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c) B. L. Flynn, H. Schirmer, M. Duetsch, A. de Meijere, J. Org. Chem. 2001, 66, 1747-1754.
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Flynn, B.L.1
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0043213849
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a) R. Aumann, I. Göttker-Schnetmann, R. Fröhlich, O. Meyer, Eur. J. Org. Chem. 1999, 2545-2561 and 3209;
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(1999)
Eur. J. Org. Chem.
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Aumann, R.1
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16
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0032700560
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b) R. Aumann, I. Göttker-Schnetmann, R. Fröhlich, O. Meyer, Eur. J. Org. Chem. 1999, 3209;
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Eur. J. Org. Chem.
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Aumann, R.1
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0035817673
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c) I. Göttker-Schnetmann, R. Aumann, K. Bergander, Organometallics 2001, 20, 3574-3581.
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(2001)
Organometallics
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Göttker-Schnetmann, I.1
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0035793295
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R. Aumann, I. Göttker-Schnetmann, R. Fröhlich, P. Saarenketo, Ch. Holst, Chem. Eur. J. 2001, 7, 711-720.
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Aumann, R.1
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20
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0000921410
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R. Aumann, R. Fröhlich, J. Prigge, O. Meyer, Organometallics 1999, 18, 1369-1380.
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(1999)
Organometallics
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, pp. 1369-1380
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Aumann, R.1
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0035963232
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H. Wu; R. Aumann, R. Fröhlich, E. Wegelius, Organometallics 2001, 20, 2183-2190.
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(2001)
Organometallics
, vol.20
, pp. 2183-2190
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Wu, H.1
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23
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0035793278
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H. Wu, R. Aumann, R. Fröhlich, P. Saarenketo, Chem. Eur. J. 2001, 7, 700-710.
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(2001)
Chem. Eur. J.
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Wu, H.1
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24
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0033714542
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H. Wu, R. Aumann, R. Fröhlich, E. Wegelius, P. Saarenketo, Organometallics 2000, 19, 2373-2381.
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(2000)
Organometallics
, vol.19
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Wu, H.1
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25
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0033766206
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H. Wu, R. Aumann, S. Venne-Dunker, P. Saarenketo, Eur. J. Org. Chem. 2000, 3463-3473.
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(2000)
Eur. J. Org. Chem.
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Wu, H.1
Aumann, R.2
Venne-Dunker, S.3
Saarenketo, P.4
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26
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0031774005
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-
For related studies in which 1-metalla-1,3,5-trienes were generated by addition of dienes to (1-alkynyl)carbene complexes, see: a) J. Barluenga, F. Aznar, S. Barluenga, M. Fernández, A. Martín, S. García-Granda, A. Pinera-Nicolás, Chem. Eur. J. 1998, 4, 2280-2298;
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Barluenga, J.1
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Martín, A.5
García-Granda, S.6
Pinera-Nicolás, A.7
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27
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0003844237
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b) J. Barluenga, F. Aznar, M. A. Palomero, S. Barluenga, Org. Lett. 1999, 541-543.
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Barluenga, J.1
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Barluenga, S.4
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28
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85007638220
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For earlier studies on such reactions see ref. [12]
-
For earlier studies on such reactions see ref. [12].
-
-
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29
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0034963194
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In a publication on similar [4+2] cycloadditions, which appeared after submission of our manuscript, it is explicitly stated that electron-deficient alkynes, like compounds 3, would not afford [4+2] cycloadducts to compounds 7: Y.-T. Wu, H. Schirmer, M. Noltemeyer, A. deMeijere, Eur. J. Org. Chem. 2001, 2501-2506.
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Wu, Y.-T.1
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Demeijere, A.4
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30
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-
85007639372
-
-
According to NMR measurements
-
According to NMR measurements.
-
-
-
-
31
-
-
85007639385
-
-
For the numbering of these atoms, see the formula in the experimental section
-
For the numbering of these atoms, see the formula in the experimental section.
-
-
-
-
32
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0024995762
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For [4+2] and [4+3] cycloadditions of 1,3-dienes to 1-metalla-1,3-butadienes see: a) W. D. Wulff, W. E. Bauta, R. W. Kaesler, P. J. Lankford, R. A. Miller, C. K. Murray, D. C. Yang, J. Am. Chem. Soc. 1990, 112, 3642-3659;
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Miller, R.A.5
Murray, C.K.6
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d) J. Barluenga, F. Aznar, M. Fernández, Chem. Eur. J. 1997, 3, 1629-1637.
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W. D. Wulff, D. C. Yang, Ch. K. Murray, J. Am. Chem. Soc. 1988, 110, 2653-2655.
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0010704461
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A referee of this paper pointed out that the formation of seven-membered N-heterocyclic rings from 1-metalla-1,3-butadienes and 1-azabutadienes have been reported by a) J. Barluenga, M. Tomás, A. Ballesteros, J. Santamaria, R. J. Carbajo, F. López-Ortiz, S. Garcia-Granda, P. Pertierra, Chem. Eur. J. 1996, 2, 88-97
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Pertierra, P.8
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b) R. Aumann, Z. Yu, R. Fröhlich, J. Organomet. Chem. 1997, 549, 311-318.
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39
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0000638898
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Seven-membered N-heterocyclic rings were also obtained from 2-azabutadienes by J. Barluenga, M. Tomás, A. Ballesteros, J. Santamaria, A. Suárez-Sobrino, J. Org. Chem. 1997, 62, 9229-9235.
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40
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0034723029
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For reaction of enamines with 1-metalla-1,3-butadienes see: a) J. Barluenga, A. Ballesteros, J. Santamaría, R. Bernardo, E. Rubio, M. Tomás, J. Am. Chem. Soc. 2000, 122, 12874-12875;
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0033549084
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b) J. Barluenga, M. Tomás, A. Ballesteros, J. Santamaría, C. Brillet, S. García-Granda, A. Pinera-Nicolás, J. T. Vázquez, J. Am. Chem. Soc. 1999, 121, 4516-4517.
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43
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0031059866
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Data sets were collected with Nonius CAD4, MACH3, and KappaCCD diffractometers, in the case of Mo radiation equipped with a rotating anode generator Nonius FR591. Programs used: data collection EXPRESS (Nonius, 1994) and COLLECT (Nonius, 1998), data reduction MolEN (K. Fair, Enraf-Nonius, 1990) and Denzo-SMN (Z. Otwinowski, W. Minor, Methods in Enzymology, 1997, 276, 307-326)
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Otwinowski, Z.1
Minor, W.2
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47
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85007639312
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Universität Göttingen
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structure refinement SHELXL-97 (G. M. Sheldrick, Universität Göttingen, 1997)
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(1997)
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Sheldrick, G.M.1
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48
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85007639311
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Universität Bonn
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graphics DIAMOND (K. Brandenburg, Universität Bonn, 1997).
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(1997)
-
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Brandenburg, K.1
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