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(b) Grob, C. A.; Schiess, P. W. Angew. Chem., Int. Ed. Engl. 1967, 6, 1.
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7
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0003344328
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If the bond scission is the result of a Grob fragmentation, then it is likely to occur when one, or both, of the nitrogen atoms is oxidized to the hydroxylamino oxidation state wherein the hydroxyl function may serve as an effective leaving group. The "push-pull" mechanism is postulated to become operational when electron pair donation from a less oxidized nitrogen (e.g., amino or hydroxylamino) provides "the push" toward a more highly oxidized nitrogen, "the pull" (e.g., nitroso or nitro) which facilitates the bond scission process. Theoretical aspects of the latter mechanism are considered in the following: (a) Murray, J. S.; Concha, M.; Seminario, J. M.; Politzer, P. J. Phys. Chem. 1991, 95, 1601. (b) Murray, J. S.; Seminario, J. M.; Politzer, P. Struct. Chem. 1991, 2, 153.
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8
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0342493740
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If the bond scission is the result of a Grob fragmentation, then it is likely to occur when one, or both, of the nitrogen atoms is oxidized to the hydroxylamino oxidation state wherein the hydroxyl function may serve as an effective leaving group. The "push-pull" mechanism is postulated to become operational when electron pair donation from a less oxidized nitrogen (e.g., amino or hydroxylamino) provides "the push" toward a more highly oxidized nitrogen, "the pull" (e.g., nitroso or nitro) which facilitates the bond scission process. Theoretical aspects of the latter mechanism are considered in the following: (a) Murray, J. S.; Concha, M.; Seminario, J. M.; Politzer, P. J. Phys. Chem. 1991, 95, 1601. (b) Murray, J. S.; Seminario, J. M.; Politzer, P. Struct. Chem. 1991, 2, 153.
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Murray, J.S.1
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Politzer, P.3
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9
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37049080750
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4 8]-decane-8-carboxylate: Marchand, A. P.; Jin, P.-W.; Flippen-Anderson, J. L., Gilardi, R.; George, C. J. Chem. Soc., Chem. Commun. 1987, 1108. (b) 1,2,2-Trinitroadamantane: Dave, P. R.; Axenrod, T.; Qi, L.; Bracuti, A. J. Org. Chem. 1995, 60, 1895.
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Marchand, A.P.1
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Flippen-Anderson, J.L.3
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0242535432
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4 8]-decane-8-carboxylate: Marchand, A. P.; Jin, P.-W.; Flippen-Anderson, J. L., Gilardi, R.; George, C. J. Chem. Soc., Chem. Commun. 1987, 1108. (b) 1,2,2-Trinitroadamantane: Dave, P. R.; Axenrod, T.; Qi, L.; Bracuti, A. J. Org. Chem. 1995, 60, 1895.
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(b) Waykole, L. M.; Shen, C.-C.; Paquette, L. A. J. Org. Chem. 1988, 53, 4969.
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(c) Paquette, L. A., Nakamura, K.; Engel, P. Chem. Ber. 1986, 119, 3782.
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Paquette, L.A.1
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0028241584
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This reference reports a 59% yield for the 1 to 2 conversion
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Camps, P.; Munoz-Torrero, D. Tetrahedron Lett. 1994, 35, 3187. This reference reports a 59% yield for the 1 to 2 conversion.
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Camps, P.1
Munoz-Torrero, D.2
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Dave, P. R.; Forohar, F.; Axenrod, T.; Qi, L.; Watnick, C.; Yazdekhasti, H. Tetrahedron Lett. 1994, 35, 8965.
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Zajac Jr., W.W.2
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17
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15844412069
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U.S. Patent 5,105,301, Zajac, W. W., Jr., 1992
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U.S. Patent 5,105,301, Zajac, W. W., Jr., 1992.
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18
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0016691895
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Micheli, R.; Hojas, Z.; Cohen, N.; Paritosh, D.; Portland, L.; Sciamanna, W.; Scott, M.; Wehrli, P. J. Org. Chem. 1975, 40, 675.
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19
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33947463001
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For example: 1,5-diamino-3,3,7,7-tetracarbethoxy-cis-bicyclo-[3.3.0]octane is formed by reductive cyclization of the dioxime of 3,3,7,7-tetracarbethoxycyclooctane-1,5-dione: Cope, A. C.; Kagan, F. J. Am. Chem Soc. 1958, 80, 5499. Bicyclo[3.3.0]octane-1-carboxaldehyde is formed by the acid-catalyzed cyclization of the enol form of 5-methylenecyclooctanecarboxaldehyde: Graham, S. H.; Jonas, D. A. J. Chem. Soc., Chem. Commun. 1968, 1091.
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Cope, A.C.1
Kagan, F.2
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20
-
-
37049134582
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-
For example: 1,5-diamino-3,3,7,7-tetracarbethoxy-cis-bicyclo-[3.3.0]octane is formed by reductive cyclization of the dioxime of 3,3,7,7-tetracarbethoxycyclooctane-1,5-dione: Cope, A. C.; Kagan, F. J. Am. Chem Soc. 1958, 80, 5499. Bicyclo[3.3.0]octane-1-carboxaldehyde is formed by the acid-catalyzed cyclization of the enol form of 5-methylenecyclooctanecarboxaldehyde: Graham, S. H.; Jonas, D. A. J. Chem. Soc., Chem. Commun. 1968, 1091.
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Graham, S.H.1
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0001550907
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Sasaki, T.; Egushi, S.; Kiriyama, T.; Hiroaki, O. Tetrahedron 1974, 30, 2707.
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Kornblum, N.; Singh, H.; Kelly, W. J. Org. Chem. 1983, 48, 332.
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33
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15844383289
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note
-
The author has deposited atomic coordinates for this structure 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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