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(a) Ghera, E.; Yechezkel, T.; Hassner, A. Tetrahedron Lett. 1990, 31, 3653-3656.
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33751156579
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Yechezkel, T.1
Ghera, E.2
Ostercamp, D.3
Hassner, A.4
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8
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0026693094
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For preparation and applications of this intermediate to the synthesis of γ-functionalized methallyl sulfones, see: Nájera, C.; Sansano, J. M. Tetrahedron 1992, 48, 5179-5190.
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Nájera, C.1
Sansano, J.M.2
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11
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0026555916
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(a) Ghera, E.; Ben-Yaakov, E.; Yechezkel, T.; Hassner, A. Tetrahedron Lett. 1992, 33, 2741-2744.
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Ghera, E.1
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0028357110
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(b) Alonso, D. A.; Nájera, C.; Sansano, J. M. Tetrahedron 1994, 50, 6603-6620.
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Alonso, D.A.1
Nájera, C.2
Sansano, J.M.3
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13
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0040890197
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For the corresponding unsubstituted allyl organolithium compounds derived from methallylamines see: (a) Fitt, J. J.; Gschwend, H. W. J. Org. Chem. 1981, 46, 3349-3352. (b) Barluenga, J.; Fañanás, F. J.; Foubelo, F.; Yus, M. J. Chem. Soc., Chem. Commun. 1988, 1135-1136. (c) Barluenga, J.; González, R.; Fañanás, F. J. Tetrahedron Lett. 1992, 33, 7573-7574. (d) Foubelo, F. Ph.D. Thesis, University of Oviedo, 1989.
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Fitt, J.J.1
Gschwend, H.W.2
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14
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37049083491
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For the corresponding unsubstituted allyl organolithium compounds derived from methallylamines see: (a) Fitt, J. J.; Gschwend, H. W. J. Org. Chem. 1981, 46, 3349-3352. (b) Barluenga, J.; Fañanás, F. J.; Foubelo, F.; Yus, M. J. Chem. Soc., Chem. Commun. 1988, 1135-1136. (c) Barluenga, J.; González, R.; Fañanás, F. J. Tetrahedron Lett. 1992, 33, 7573-7574. (d) Foubelo, F. Ph.D. Thesis, University of Oviedo, 1989.
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Barluenga, J.1
Fañanás, F.J.2
Foubelo, F.3
Yus, M.4
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15
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0026497552
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For the corresponding unsubstituted allyl organolithium compounds derived from methallylamines see: (a) Fitt, J. J.; Gschwend, H. W. J. Org. Chem. 1981, 46, 3349-3352. (b) Barluenga, J.; Fañanás, F. J.; Foubelo, F.; Yus, M. J. Chem. Soc., Chem. Commun. 1988, 1135-1136. (c) Barluenga, J.; González, R.; Fañanás, F. J. Tetrahedron Lett. 1992, 33, 7573-7574. (d) Foubelo, F. Ph.D. Thesis, University of Oviedo, 1989.
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Barluenga, J.1
González, R.2
Fañanás, F.J.3
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16
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0040890197
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Ph.D. Thesis, University of Oviedo
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For the corresponding unsubstituted allyl organolithium compounds derived from methallylamines see: (a) Fitt, J. J.; Gschwend, H. W. J. Org. Chem. 1981, 46, 3349-3352. (b) Barluenga, J.; Fañanás, F. J.; Foubelo, F.; Yus, M. J. Chem. Soc., Chem. Commun. 1988, 1135-1136. (c) Barluenga, J.; González, R.; Fañanás, F. J. Tetrahedron Lett. 1992, 33, 7573-7574. (d) Foubelo, F. Ph.D. Thesis, University of Oviedo, 1989.
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(1989)
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Foubelo, F.1
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19
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3743122954
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For a recent review of saturated nitrogen heterocycles see: Steele, J. Contemp. Org. Synth. 1994, 95-112.
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(1994)
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Steele, J.1
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21
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3743081754
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a values of dimethylsulfone and diethylamine are 23 and 36, respectively: Eisch, J. J.; Galle, J. E. J. Org. Chem. 1980, 45, 4536-4538.
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J. Org. Chem.
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Eisch, J.J.1
Galle, J.E.2
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22
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3743070576
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note
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6b with ethyl crotonate.
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23
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3743071648
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note
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Torsion angles for the most stable conformer were determined using Molecular Mechanics calculations: Hyperchem V3.0 from Hypercube, Inc., and Autodesk, Inc., using the MM+ force field. Coupling constants values were calculated using the program Altona developed by C. M. Cerdá-García-Rojas, L. Gerardo, and P. Joseph-Nathan.
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26
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3743092721
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note
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5
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27
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0028890131
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18 (18) Ghera, E.; Ramesh, N. G.; Laxer, A.; Hassner, A. Tetrahedron Lett. 1995, 36, 1333-1336.
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Ghera, E.1
Ramesh, N.G.2
Laxer, A.3
Hassner, A.4
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29
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3743063832
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These compounds were very unstable and decomposed on standing
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These compounds were very unstable and decomposed on standing.
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30
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0026721571
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For a recent review about eight-membered rings see: Petasis, N. A.; Patane, M. A. Tetrahedron 1992, 48, 5757-5821.
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(1992)
Tetrahedron
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Petasis, N.A.1
Patane, M.A.2
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31
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49549126692
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Trost, B. M.; Arndt, H. C.; Strege, P. E.; Verhoeven, T. R. Tetrahedron Lett. 1976, 3477-3478.
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Trost, B.M.1
Arndt, H.C.2
Strege, P.E.3
Verhoeven, T.R.4
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33
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0028090343
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Nicolaou, K. C.; Bunnage, M. E.; Koide, K. J. Am. Chem. Soc. 1994, 116, 8402-8403.
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Nicolaou, K.C.1
Bunnage, M.E.2
Koide, K.3
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34
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0028072408
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Li, S.; Kosemura, S.; Yamamura, S. Tetrahedron Lett. 1994, 35, 8217-8220.
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(1994)
Tetrahedron Lett.
, vol.35
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Li, S.1
Kosemura, S.2
Yamamura, S.3
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35
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3743079505
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note
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2O content measured gas chromatographically) does not allow the determination of %D content. Thus, calculated %H/D values are corrected considering this fact.
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36
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3743103854
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note
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Diffractometer control program. For 20g: CAD4-PC, Delft Instruments X-ray Diffraction bv, Delft, The Netherlands, 1993. For 20i: CAD4-PC V 1.5c, Delft Instruments X-ray Diffraction bv, Delft, The Netherlands, 1994.
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37
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3743116193
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note
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29 were done on a Hewlett-Packard 715/50 (HP-UX V9.01).
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40
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3743140725
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note
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The author has deposited atomic coordinates for 20g,i with the Cambridge Crystallographic Data Centre. The coordinates can be obtained, on request, from the Director, Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, UK.
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