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For synthetic studies see ref. 2 and: (a) Gurjar, M. K.; Kumar, P.; Rao, B. V. Tetrahedron Lett. 1996, 37, 8617. (b) Gurjar, M. K.; Chakrabarti, A.; Rao, B. V.; Kumar, P. Tetrahedron Lett. 1997, 38, 6885. (c) Nowakowski, M.; Hoffmann, H. M. R. Tetrahedron Lett. 1997, 38, 1001. (d) Beck, H.; Hoffmann, H. M. R. Eur. J. Org. Chem. 1999, 2991.
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Nowakowski, M.1
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8
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19
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0001588031
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23
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85086489198
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note
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13C NMR spectra of 2 and 3.
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-
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26
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0001506597
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Nagao, Y.; Kumagai, T.; Tamai, S.; Abe, T.; Kuramoto, Y.; Taga, T.; Aoyagi, S.; Nagase, Y.; Ochiai, M.; Inoue, Y.; Fujita, E. J. Am. Chem. Soc. 1986, 108, 4673.
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0022384817
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31
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34
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20244369524
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note
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We thank Dr. Judith C. Gallucci for determining the structure of 40 at the OSU Chemistry Department Crystallographic Facility.
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-
-
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35
-
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20244363315
-
-
note
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6 p-methoxystyryl group with phenyl, 2-furyl, styryl). In all cases the structure corresponding to 35 was the major product in 60-70% yield. In one case (styryl) a minor diastereomer (5%) was detected in which all substituents were equatorially disposed on the tetrahydropyran ring with the exception of the benzyloxymethyl group (axially disposed).
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-
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36
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0001071070
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Dalton, D. R.; Dutta, V. P.; Jones, D. G. J. Am. Chem. Soc. 1968, 90, 5498.
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37
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0001434093
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Fugami, K.4
Oshima, K.5
Utimoto, K.6
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40
-
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20244385658
-
-
note
-
Some of the reagents used in Schemes 1 and 2 are toxic (for example PhSeCl). Appropriate care should be used in the handling and disposal of these materials.
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