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3142754987
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Compound 9a was synthesized by treatment of allyl magnesium bromide with ethyl formate.
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1H NMR signals to s-cis/s-trans isomers, see: a) I. D. Riggi, S. Gastaldi, J. M. Surzur, M. P. Bertrand, J. Org. Chem. 1992, 57, 6118;
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0009518695
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Compound 9b was synthesized by treatment of pent-4-enal with allyl magnesium bromide; b) H. C. Brown, E.-i. Negishi, W. C. Dickason, J. Org. Chem. 1985, 50, 520.
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Compounds 13a and 13b were prepared by treatment of allyl magnesium bromide with acetonitrile or butyronitrile. For the procedure, see: H. R. Henze, B. B. Allen, W. B. Leslie, J. Am. Chem. Soc. 1943, 65, 87.
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78
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3142725618
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note
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int = 0.1721), not observed (I > 2σ(I)) 1658, parameters 163. CCDC-172850 contains the supplementary crystallographic data for 15a. These data can be obtained free of charge via www.ccdc.cam.ac.uk/ conts/retrieving.html (or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; fax: (+44) 1223-336033; or deposit@ccdc.cam.uk).
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80
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3142684597
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-
note
-
2. These data can be obtained as described in ref. [22].
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81
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0033387458
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a) J. A. Rao, M. P. Cava, J. Org. Chem. 1989, 54, 2751; (Z)-2,5-dihexen-1-ol (cis/trans = 99:1, determined by GC analysis) was prepared by the reduction of hex-2-yn-5-en-1-ol with the Zn-Cu couple in methanol (sealed tube, 120°C) in 80% yield.
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3142759438
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note
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Direct monobenzylation of (3R,4S) diene 23 yielded two benzyl ethers with a low selectivity [Eq. (1)]. (Equation presented).
-
-
-
-
85
-
-
3142741706
-
-
note
-
19F NMR spectrum of these Mosher's esters.
-
-
-
-
86
-
-
3142722652
-
-
note
-
int = 0.0516), not observed (I > 2σ(I)) 1941, parameters 204. CCDC-218925 contains the supplementary crystallographic data for 36. These data can be obtained as described in ref. [22].
-
-
-
-
87
-
-
3142743221
-
-
note
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Compound 12d was prepared according to Equation (2). (Equation presented).
-
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88
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0037154769
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