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Rappoport, Z.; Marek, I., Eds.; John Wiley & Sons: West Sussex Ch. 4
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0036499897
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For a review, see The preparation of pyrrolidines by carbolithiation reactions of N-homoallyl α-amino-organolithiums has been extensively studied by Coldham and coworkers: Ashweek, N.J.; Coldham, I.; Snowden, D.J.; Vennall, G.P. Chem. Eur. J. 2002, 8, 195-207 and references cited therein
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For a review, see: Mealy, M.J.; Bailey, W.F. J. Organomet. Chem. 2002, 646, 59-67. The preparation of pyrrolidines by carbolithiation reactions of N-homoallyl α-amino-organolithiums has been extensively studied by Coldham and coworkers: Ashweek, N.J.; Coldham, I.; Snowden, D.J.; Vennall, G.P. Chem. Eur. J. 2002, 8, 195-207 and references cited therein.
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4444353880
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33646236946
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c) Morikawa, S.; Yamazaki, S.; Furusaki, Y.; Amano, N; Zenke. K.; Kakiuchi, K. J. Org. Chem. 2006, 71, 3540-3544.
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Amano, N.4
Zenke, K.5
Kakiuchi, K.6
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20
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33746121537
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At this temperature the carbolithiation reaction needed ca. 12 h to get completion
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At this temperature the carbolithiation reaction needed ca. 12 h to get completion.
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-
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21
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0041378607
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Vinyllithium compounds bearing aryl substituents are known to undergo facile cis-trans isomerization, and kinetic studies on the rate of these isomerizations have been reported. See: a)
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Vinyllithium compounds bearing aryl substituents are known to undergo facile cis-trans isomerization, and kinetic studies on the rate of these isomerizations have been reported. See: a) Hunter, D.H.; Cram, D.J. J. Am. Chem. Soc. 1964,86, 5478-5490.
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Hunter, D.H.1
Cram, D.J.2
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23
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33746117273
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Evolution of 7c to room temperature in order to favor the formation of 9c gave rise to a complex mixture of products
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Evolution of 7c to room temperature in order to favor the formation of 9c gave rise to a complex mixture of products.
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-
-
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24
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33845278764
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Only 1,2-disubstituted olefins in which the initially formed alkyllithium product is substituted with a moderately activating group or with a leaving group in a β-position are useful substrates for this kind of carbocyclizations, see: a)
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Only 1,2-disubstituted olefins in which the initially formed alkyllithium product is substituted with a moderately activating group or with a leaving group in a β-position are useful substrates for this kind of carbocyclizations, see: a) Broka, C.A.; Lee, W.J.; Shen, T. J. Org. Chem. 1988, 53, 1336-1338.
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J. Org. Chem.
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Broka, C.A.1
Lee, W.J.2
Shen, T.3
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26
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33746172654
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-
note
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16BrN: 265.0466, found: 265.0473.
-
-
-
-
27
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-
33746107993
-
-
note
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2 position and so, 9a can not be obtained.
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