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3
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0037041356
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Amador, M.1
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4
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3542997455
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(b) Ariza, X.; Bach, J.; Berenguer, R.; Farràs, J.; Fontes, M.; Garcia, J.; López, M.; Ortiz, J. J. Org. Chem. 2004, 69, 5307.
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5
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0037037959
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Diez, R.S.1
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6
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0037069705
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5444251717
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8
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34250667360
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16
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0035130088
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(c) For a review on 1,2-diacetals, see: Ley, S.V.; Baeschlin, D. K.; Dixon, D. J.; Foster, A. C.; Ince, S. J.; Priepke, H. W. M.; Reynolds, D. J. Chem. Rev. 2001, 101, 53.
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Reynolds, D.J.7
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17
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33747046295
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-
note
-
As far as the reactivity of aldehyde 7 is concerned, the only reported data of addition of nucleophiles were found in ref. 8a where it was stated that: 'preliminary studies concerned with the addition of organomagnesium reagents to aldehyde 7 indicated that the syn/anti selectivity of addition is similar to that observed with dispiroketalaldehyde 8.'
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-
-
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18
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33747077662
-
-
note
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+: 387.1408; found: 387.1414.
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-
-
-
19
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33747064893
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-
note
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2 and (-)-N-methylephedrine according with Carreira's catalytic protocol (see ref. 11b) showed lower yield and stereoselectivity.
-
-
-
-
21
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33747075361
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-
see ref. 5, pp. 456-458
-
It is noteworthy that reactions of aldehyde 2 with nucleophilic reagents predominantly give the anti-isomer. A delicate balance of α-coordination (pro syn) and β- or α,β-coordination (both pro anti) is probably involved, leading to a broad range of selectivities depending of the reagent and experimental conditions: see ref. 5, pp. 456-458.
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23
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0014682610
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(a) Isono, K.; Asahi, K.; Suzuki, S. J. Am. Chem. Soc. 1969, 91, 7490.
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Isono, K.1
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25
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0016233882
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Mori, M.; Kakiki, K.; Misato, T. Agric. Biol. Chem. 1974, 38, 699.
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Mori, M.1
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26
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0020566918
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Shenbagamurthi, P.; Smith, H. A.; Becker, J. M.; Steinfeld, A.; Naider, F. J. Med. Chem. 1983, 26, 1518.
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Shenbagamurthi, P.1
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27
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0001033542
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(a) For a review, see: Casiraghi, G.; Zanardi, F.; Rassu, G.; Spanu, P. Chem. Rev. 1995, 95, 1677.
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4444327065
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Kim, K.S.1
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Davis, F.A.1
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15044347558
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19344364813
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Li, S.1
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Lu, T.-J.6
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35
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0034725843
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Bose, A.K.1
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36
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0344391932
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(c) Tarrade, A.; Dauban, P.; Dodd, R. H. J. Org. Chem. 2003, 65, 9521.
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Tarrade, A.1
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37
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0037039966
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Lei, A. W.; Liu, G. S.; Lu, X. Y. J. Org. Chem. 2002, 67, 974.
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Lei, A.W.1
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-
39
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33747058192
-
-
note
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+: 302.0698; found: 302.0697.
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