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9
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5th ed, Padwa, A, Ed, Thieme: Stuttgart
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Heydt, H. In Science of Synthesis Houben-Weyl Methods of Molecular Transformations: Heteroatom Analogues of Aldehydes and Ketones, 5th ed.; Padwa, A., Ed.; Thieme: Stuttgart, 2004; Vol. 27, pp 843-935.
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11
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4644339114
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For recent nonheavy-metal-mediated hydrazone dehydrogenation methods, see: a
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For recent nonheavy-metal-mediated hydrazone dehydrogenation methods, see: (a) Furrow, M. E.; Myers, A. G. J. Am. Chem. Soc. 2004, 126, 12222-12223.
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Myers, A.G.2
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13
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34248387592
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For a summary of other oxidants that effect this conversion but find less use, see ref 7
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For a summary of other oxidants that effect this conversion but find less use, see ref 7.
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14
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12644312578
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Huang, S.-L.2
Swern, D.J.3
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16
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34248365527
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The activation of DMSO with oxalyl chloride in THF was initially problematic. When DMSO was added to a precooled solution of oxalyl chloride in THF, the DMSO solidified and only slowly dissolved and reacted. This was circumvented by changing the order of addition: oxalyl chloride was added to a cold solution of DMSO in THF
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The activation of DMSO with oxalyl chloride in THF was initially problematic. When DMSO was added to a precooled solution of oxalyl chloride in THF, the DMSO solidified and only slowly dissolved and reacted. This was circumvented by changing the order of addition: oxalyl chloride was added to a cold solution of DMSO in THF.
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17
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34248403591
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Caution: Diazo compounds are known to be explosive, and ground glass is thought to catalyze the explosive decomposition of diazomethane. Although we had no explosions while working with these compounds, suitable safety precautions were taken and all manipulations were conducted behind safety blast shields
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Caution: Diazo compounds are known to be explosive, and ground glass is thought to catalyze the explosive decomposition of diazomethane. Although we had no explosions while working with these compounds, suitable safety precautions were taken and all manipulations were conducted behind safety blast shields.
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20
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34248378613
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Andrews, S. D.; Day, A. C.; Raymond, P.; Whiting, M. C. Organic Syntheses; Coll. 6, p 392 (1988); 50, p 50 (1970).
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Andrews, S. D.; Day, A. C.; Raymond, P.; Whiting, M. C. Organic Syntheses; Coll. Vol. 6, p 392 (1988); Vol. 50, p 50 (1970).
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21
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34248359821
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The apparatus and procedure we used to measure nitrogen gas evolution was based on that described by: (i) Holton, T. C. The Synthesis of Diazo Compounds by Low-Temperature Oxidation of Hydrazones with Lead Tetraacetate. Ph.D. Thesis, The Ohio State University, 1971, 98-102
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The apparatus and procedure we used to measure nitrogen gas evolution was based on that described by: (i) Holton, T. C. The Synthesis of Diazo Compounds by Low-Temperature Oxidation of Hydrazones with Lead Tetraacetate. Ph.D. Thesis, The Ohio State University, 1971, 98-102.
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Mathison, C.J.N.2
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34248351052
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Smith, L. I.; Howard, K. L. Organic Syntheses; Coll. 3, p 351 (1955); 24, p 53 (1944).
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Smith, L. I.; Howard, K. L. Organic Syntheses; Coll. Vol. 3, p 351 (1955); Vol. 24, p 53 (1944).
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27
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0032835068
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Suzuki, T, Ohashi, K, Oriyama, T. Synthesis 1999, 1561-1563. The 13C NMR data for this compound are identical to those described in the literature. The 1H NMR data are also identical except for the chemical shift of one set of protons that appears to have been reported in error. We observed the methylene protons on the carbon bearing the ester as a triplet at 4.38 ppm. We believe the reported shift of 4.85 ppm is in error as it is presented out of numerical order in the original publication
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1H NMR data are also identical except for the chemical shift of one set of protons that appears to have been reported in error. We observed the methylene protons on the carbon bearing the ester as a triplet at 4.38 ppm. We believe the reported shift of 4.85 ppm is in error as it is presented out of numerical order in the original publication.
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28
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0034708414
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Song, F. H.; Darbeau, R. W.; White, E. H. J. Org. Chem. 2000, 65, 1825-1829.
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Darbeau, R.W.2
White, E.H.3
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Verardo, G.3
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