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Potier, P.5
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12
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0002075532
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(d) Nanteuil, G. D.; Ahond, A.; Poupat, C.; Thoison, O.; Potier, P. Bull. Soc. Chim. Fr. 1986, 813.
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13
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33750503085
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Fr. Patent FR2681323, 1991
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Alain, C. Fr. Patent FR2681323, 1991; Chem. Abstr. 1993, 119; 139229a.
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Chem. Abstr.
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Alain, C.1
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15
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33750522007
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note
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5: C, 54.01; H, 6.80; N, 13.50. Found: C, 53.76; H, 6.63; N, 13.70.
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16
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33750504212
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note
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The reaction was continued until complete consumption of the starting material was ascertained by TLC analysis.
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18
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33750523609
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note
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The crystallographic data was deposited at the Cambridge Crystallographic Data Centre. The deposition number is CCDC 605791.
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19
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33750515639
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note
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When the reaction of 15 and 12a was examined in THF at 50 °C for 3 h (see below), 16 was obtained as an almost sole product in 68% yield along with a trace amount of 17.
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20
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33750494308
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note
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2, EtOAc) afforded 14a as a colorless solid (159 mg, 62%). An analytical sample of 14a was prepared by recrystallization from EtOAc.
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21
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33750507906
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note
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We subjected 18a to tritylation, acetylation, triisopropylsilylation and methoxymethylation under the standard reaction conditions. Although formation of the desired compounds corresponding to 19a was observed in tritylation, acetylation and triisopropylsilylation, these products were found to be too unstable to be isolated in pure states. In the case of methoxymethylation, a complex mixture was obtained as the reaction product.
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22
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26844568935
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Blakemore, P. R.; Cole, W. J.; Kocienski, P. J.; Morley, A. Synlett 1998, 26.
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Synlett
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Blakemore, P.R.1
Cole, W.J.2
Kocienski, P.J.3
Morley, A.4
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24
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33750509617
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note
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6 202-205 °C (dec.)].
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25
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32644447581
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Forenza, S.; Minale, L.; Riccio, R.; Fattorusso, E. J. Chem. Soc., Chem. Commun. 1971, 1129.
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Forenza, S.1
Minale, L.2
Riccio, R.3
Fattorusso, E.4
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26
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33750513610
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note
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19 amorphous solid).
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28
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0022478418
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Kobayashi, J.; Ohizumi, Y.; Nakamura, H.; Hirata, Y. Experientia 1986, 42, 1176.
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Kobayashi, J.1
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Hirata, Y.4
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29
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0001208852
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Olofson, A.; Yakushijin, K.; Horne, D. A. J. Org. Chem. 1998, 63, 1248.
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Olofson, A.1
Yakushijin, K.2
Horne, D.A.3
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30
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33750519448
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note
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1H NMR spectra of 3 and 4 synthesized by us clearly showed that both samples were contaminated by small amounts of the unnatural Z isomers (ca. 5%).
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31
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0030002598
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Cafieri, F.; Fattorusso, E.; Mangoni, A.; Taglialatela-Scafati, O. Tetrahedron Lett. 1996, 37, 3587.
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(1996)
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Cafieri, F.1
Fattorusso, E.2
Mangoni, A.3
Taglialatela-Scafati, O.4
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