Conclusions
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1.
A mechanism was proposed and theoretically justified for the coordinated isomerization of gendihalocyclopropanes to 2,3-dihaloolefins, which consists in the synchronous migration of the halogen and rupture of the opposite bond of the cyclopropane ring.
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2.
The application of this mechanism to the isomerization of bicyclic gen-dihalocyclopropanes explains all of the structural and kinetic rules of the given reaction, in particular, the preferential participation of the endo-halogen atom in it.
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Literature cited
R. Bartlet and Y. Vo Quang, Bull. Soc. Chim. France, 3729 (1969).
S. W. Benson, J. Chem. Phys.,34, 521 (1961).
S. W. Benson, Thermochemical Kinetics [Russian translation], Mir (1971).
K. A. W. Parry and R. J. Robinson, Chem. Commun., 1083 (1967).
R. Fields, R. N. Haszeldine, and D. Peter, J. Chem. Soc., C 165 (1969).
G. C. Robinson, J. Org. Chem.,33, 607 (1968).
D. C. Duffey, J. P. Minyard, and R. H. Lane, J. Org. Chem.,31, 3865 (1966).
R. B. Woodward and R. Hoffman, Retention of Orbital Symmetry [Russian translation], Mir (1971).
H. E. Zimmerman, Acc. Chem. Res.,5, 393 (1972).
H. E. Zimmerman, Acc. Chem. Res.,4, 272 (1971); M. J. S. Dewar, Angew. Chem.,83, 859 (1971); M. Dewar, Theory of Molecular Orbitals in Organic Chemistry [Russian translation], Mir (1972).
O. Nefedov, N. Nowizkaja, and A. Iwaschenko, Ann. Chem.,707, 217 (1967).
R. C. De Seims and C. M. Combs, J. Org. Chem.,28, 2206 (1963).
C. W. Jefford, Proc. Chem. Soc., 64 (1963); W. R. Moore, W. R. Moser, and J. E. La Prade, J. Org. Chem.,28, 2200 (1963); E. Bergmann, ibid.,28, 2210 (1963); E. V. Dehmlow, Tetrahedron,28, 175 (1972); W. Kraus, G. Klein, H. Sadlo, and W. Rothenwöhrer, Synthesis, 485 (1972).
L. Ghoses, G. Slinckx, M. Glineur, P. Hoet, and P. Laroche, Tetrahedron Lett., 2773 (1967); C. W. Jefford, A. N. Kabengele, and U. Burger, ibid., 4799 (1972).
P. von R. Schleyer, G. W. Van Dine, U. Schöllkopf, and J. Paust, J. Am. Chem. Soc.,88, 2868 (1966); C. H. De Puy, L, C. Schnack, J. W. Hausser, and W. Wiedemann, ibid.,87, 4006 (1965); C. H. De Puy, L. C. Schnack, and J. W. Hausser, ibid.,88, 3343 (1966); U. Schöllkopf, Angew. Chem.,80, 603 (1968).
C. W. Jefford, Chimia,24, 357 (1970).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1536–1542, July, 1974.
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Ioffe, A.I., Nefedov, O.M. Mechanism of isomerization of gem-dihalocyclopropanes. Russ Chem Bull 23, 1455–1460 (1974). https://doi.org/10.1007/BF00929651
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DOI: https://doi.org/10.1007/BF00929651