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For reviews, see: (a) Chan, T. H.; Wang, D. Chem. Rev. 1995, 95, 1279. (b) Panek, J. S. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 1, Chapter 2.5. (c) Yamamoto, Y. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 2, Chapter 1.2. Also see: (d) Schaunamn, E.; Krischning, A. Tetrahedron Lett. 1988, 29, 4281. (e) Horvath, R. F.; Chan, T. H. J. Org. Chem. 1989, 54, 317. (f) Blanco, F. J.; Cuadrado, F.; Gonzalez, A. M.; Pulido, F. J. Synthesis 1996, 42.
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For reviews, see: (a) Chan, T. H.; Wang, D. Chem. Rev. 1995, 95, 1279. (b) Panek, J. S. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 1, Chapter 2.5. (c) Yamamoto, Y. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 2, Chapter 1.2. Also see: (d) Schaunamn, E.; Krischning, A. Tetrahedron Lett. 1988, 29, 4281. (e) Horvath, R. F.; Chan, T. H. J. Org. Chem. 1989, 54, 317. (f) Blanco, F. J.; Cuadrado, F.; Gonzalez, A. M.; Pulido, F. J. Synthesis 1996, 42.
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Yamamoto, Y.1
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0000991923
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For reviews, see: (a) Chan, T. H.; Wang, D. Chem. Rev. 1995, 95, 1279. (b) Panek, J. S. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 1, Chapter 2.5. (c) Yamamoto, Y. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 2, Chapter 1.2. Also see: (d) Schaunamn, E.; Krischning, A. Tetrahedron Lett. 1988, 29, 4281. (e) Horvath, R. F.; Chan, T. H. J. Org. Chem. 1989, 54, 317. (f) Blanco, F. J.; Cuadrado, F.; Gonzalez, A. M.; Pulido, F. J. Synthesis 1996, 42.
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Schaunamn, E.1
Krischning, A.2
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0343916781
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For reviews, see: (a) Chan, T. H.; Wang, D. Chem. Rev. 1995, 95, 1279. (b) Panek, J. S. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 1, Chapter 2.5. (c) Yamamoto, Y. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 2, Chapter 1.2. Also see: (d) Schaunamn, E.; Krischning, A. Tetrahedron Lett. 1988, 29, 4281. (e) Horvath, R. F.; Chan, T. H. J. Org. Chem. 1989, 54, 317. (f) Blanco, F. J.; Cuadrado, F.; Gonzalez, A. M.; Pulido, F. J. Synthesis 1996, 42.
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For reviews, see: (a) Chan, T. H.; Wang, D. Chem. Rev. 1995, 95, 1279. (b) Panek, J. S. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 1, Chapter 2.5. (c) Yamamoto, Y. In Comprehensive Organic Synthesis; Trost, B. M., Ed.; Pergamon Press: Oxford, U.K., 1991; Vol. 2, Chapter 1.2. Also see: (d) Schaunamn, E.; Krischning, A. Tetrahedron Lett. 1988, 29, 4281. (e) Horvath, R. F.; Chan, T. H. J. Org. Chem. 1989, 54, 317. (f) Blanco, F. J.; Cuadrado, F.; Gonzalez, A. M.; Pulido, F. J. Synthesis 1996, 42.
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-
14
-
-
85033830567
-
-
note
-
The reaction conducted in a THF solution afforded a mixture of more than 10 products which were incorporated by CO.
-
-
-
-
15
-
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0000611186
-
-
8) δ 0.02 (s, 9H), 4.50 (dd, J = 12, 2 Hz, 1H), 4.70 (dd, J = 17, 2 Hz, 1H), 5.30 (d, J = 12 Hz, 1H), 5.80-6.10 (m, 1H). For an NMR study of 1-(silyl)allyllithium, see: Fraenkel, G.; Chow, A.; Winchester, W. R. J. Am. Chem. Soc. 1990, 112, 2582.
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-
-
85033810468
-
-
note
-
4, and evaporation of the solvents, the residual oil was purified by bulb to bulb distillation yielding 3b (0.914 g, 75%) as a clear oil.
-
-
-
-
17
-
-
85033822277
-
-
note
-
The overall procedure provides a unique [3 + 1] protocol for the synthesis of α,β-unsaturated aldehydes.
-
-
-
-
18
-
-
0001089623
-
-
α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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Reich, H.J.1
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Clark, M.C.3
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19
-
-
0013103510
-
-
α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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Eisenhart, E.K.2
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20
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0001703853
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-
α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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0011166405
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α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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0001528276
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α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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Danheiser, R.L.1
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Szczepanski, S.W.5
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23
-
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0000378645
-
-
α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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24
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3643091463
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α,β-Unsaturated acylsilanes are potent synthetic intermediates; for examples, see: (a) Reich, H. J.; Olson, R. E.; Clark, M. C. J. Am. Chem. Soc. 1980, 102, 1423. (b) Reich, H. J.; Eisenhart, E. K. J. Org. Chem. 1984, 49, 5282. (c) Miller, J. A.; Zweifel, G. J. Am. Chem. Soc. 1981, 103, 6217. (d) Sato, T.; Arai, M.; Kuwajima, I. J. Am. Chem. Soc. 1977, 99, 5827. (e) Danheiser, R. L.; Fink, D. M.; Okana, K.; Tsai, Y.-M.; Szczepanski, S. W. J. Org. Chem. 1985, 50, 5393. (f) Nowick, J. S.; Danheiser, R. L. J. Org. Chem. 1989, 54, 2798. (g) For the use of 3a, see: Ogoshi, S.; Ohe, K.; Chatani, N.; Kurosawa, H.; Kawasaki, Y.; Murai, S. Organometallics 1990, 9, 3021.
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Ogoshi, S.1
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Kawasaki, Y.5
Murai, S.6
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25
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0000609087
-
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2Si derivative was sluggish. This is due presumably to the steric effect associated with silyl migration. For recent examples of steric effects of substituents at silicon on anionic migration, see: Marumoto, S.; Kuwajima, I. J. Am. Chem. Soc. 1993, 115, 9021.
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Marumoto, S.1
Kuwajima, I.2
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26
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0000044570
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We have confirmed that CO pressures (5-10 atm) can assist the reaction. Cf.: An equilibrium is suggested in the addition of organolithiums to isonitriles, isoelectronic compounds of CO. See: Niznik, G. E.; Morrison, W. H., III; Warborsky, H. M. J. Org. Chem. 1974, 39, 600. A reviewer pointed out that CO, considered as a "small electrophile," could react with a kinetic preference at the α-position. For an argument for regioselectivity based on steric factors associated with ethylene oxide, see ref 3d.
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