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0028899917
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The use of catalytic Pd(OAc)2 resulted in lower yields. See: Larock, R. C.; Hightower, T. R.; Kraus, G. A.; Hahn, P.; Zheng, D. Tetrahedron Lett. 1995, 36, 2423.
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The use of catalytic Pd(OAc)2 resulted in lower yields. See: Larock, R. C.; Hightower, T. R.; Kraus, G. A.; Hahn, P.; Zheng, D. Tetrahedron Lett. 1995, 36, 2423.
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23
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63849254316
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This material was found to contain a small amount of the corresponding syn-alcohol (10:1 anti/syn, The assignment of the relative stereochemistry at the newly formed stereogenic center was made on the basis of the 1H NMR chemical shifts of the signals corresponding to the vinyl and bridgehead protons anti δ, 5.29/syn δ, 5.55 and anti δ, 2.29/syn δ, 2.38, respectively, See: Clark, F. R. S, Warkentin, J. Can. J. Chem. 1971, 49, 2223
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1H NMR chemical shifts of the signals corresponding to the vinyl and bridgehead protons (anti δ = 5.29/syn δ = 5.55 and anti δ = 2.29/syn δ = 2.38, respectively). See: Clark, F. R. S.; Warkentin, J. Can. J. Chem. 1971, 49, 2223.
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24
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0001019255
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For examples of the McMurry reaction used to for polycycles containing seven-membered rings, see (a) Dauben, W. G, Farkas, I, Bridon, D. P, Chuang, C. P, Henegar, K. E. J. Am. Chem. Soc. 1991, 113, 5883
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For examples of the McMurry reaction used to for polycycles containing seven-membered rings, see (a) Dauben, W. G.; Farkas, I.; Bridon, D. P.; Chuang, C. P.; Henegar, K. E. J. Am. Chem. Soc. 1991, 113, 5883.
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For examples of α-sulfonyl sulfones being used in Ramberg-Bäcklund ring contraction reactions, see: Scarpetti, D, Fuchs, P. L. J. Am. Chem. Soc. 1990, 112, 8084
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For examples of α-sulfonyl sulfones being used in Ramberg-Bäcklund ring contraction reactions, see: Scarpetti, D.; Fuchs, P. L. J. Am. Chem. Soc. 1990, 112, 8084.
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31
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63849125647
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2O to the NMR sample.
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2O to the NMR sample.
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