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For stoichiometric intramolecular carbametalations of enynes, see Negishi, E.; Holmes, S. J.; Tour, J. M.; Miller, J. A. J. Am. Chem. Soc. 1985, 107, 2568. Negishi, E.; Cederbaum, F. E.; Takahashi, T. Tetrahedron Lett. 1986, 27, 2829. Negishi, E.; Swanson, D. R.; Cederbaum, F. E.; Takahashi, T. Tetrahedron Lett. 1987, 28, 917. For a review, see: Negishi, E. Acc. Chem. Res. 1987, 20, 65. For intramolecular carbalkylation-carbonylation using stoichiometric cobalt complexes, see: Billington, D. C.; Pauson, P. L. Organometallics 1982, 1, 1560. Magnus, P.; Principe, L. M. Tetrahedron Lett. 1985, 26, 4851
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For stoichiometric intramolecular carbametalations of enynes, see: Nugent, W. A.; Calabrese, J. C. J. Am. Chem. Soc. 1984, 106, 6422. Negishi, E.; Holmes, S. J.; Tour, J. M.; Miller, J. A. J. Am. Chem. Soc. 1985, 107, 2568. Negishi, E.; Cederbaum, F. E.; Takahashi, T. Tetrahedron Lett. 1986, 27, 2829. Negishi, E.; Swanson, D. R.; Cederbaum, F. E.; Takahashi, T. Tetrahedron Lett. 1987, 28, 917. For a review, see: Negishi, E. Acc. Chem. Res. 1987, 20, 65. For intramolecular carbalkylation-carbonylation using stoichiometric cobalt complexes, see: Billington, D. C.; Pauson, P. L. Organometallics 1982, 1, 1560. Magnus, P.; Principe, L. M. Tetrahedron Lett. 1985, 26, 4851.
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Trost, B. M.; Lautens, M. J. Am. Chem. Soc. 1985, 107, 1781. Trost, B. M.; Lautens, M. Tetrahedron Lett. 1985, 26, 4887.
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For a reductive catalytic enyne cyclization, see: Trost, B. M.; Rise, F. J. Am. Chem. Soc. 1987, 109, 3161.
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For 1, 1-reductive elimination of alkyl groups from Pd, see Loar, M. K.; Stille, J. K. J. Am. Chem. Soc. 1981, 103, 4174. Ozawa, F.; Ito, T.; Nakamura, Y.; Yamamoto, A. Bull. Chem. Soc. Jpn. 1981, 54, 1868. Also, see: Scott, W. J.; Stille, J. K. J. A. Chem. Soc. 1986, 108, 3033. For a proposed 1, 1-reductive elimination to form cyclopropanes in a Pt-catalyzed reaction, see: Casey, C. P.; Scheck, D. M.; Shusterman, A. J. J. Am. Chem. Soc. 1979, 101, 4233. Puddephatt, R. J.; Quyser, M. A.; Tipper, C. F. H. J. Chem. Soc., Chem. Commun. 1976, 626. For a theoretical discussion and a leading reference, see: Low, J. J.; Goddard, W. A., III. J. Am. Chem. Soc. 1986, 108, 6115
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For 1, 1-reductive elimination of alkyl groups from Pd, see: Moravskiy, A.; Stille, J. K. J. Am. Chem. Soc. 1981, 103, 4182. Loar, M. K.; Stille, J. K. J. Am. Chem. Soc. 1981, 103, 4174. Ozawa, F.; Ito, T.; Nakamura, Y.; Yamamoto, A. Bull. Chem. Soc. Jpn. 1981, 54, 1868. Also, see: Scott, W. J.; Stille, J. K. J. A. Chem. Soc. 1986, 108, 3033. For a proposed 1, 1-reductive elimination to form cyclopropanes in a Pt-catalyzed reaction, see: Casey, C. P.; Scheck, D. M.; Shusterman, A. J. J. Am. Chem. Soc. 1979, 101, 4233. Puddephatt, R. J.; Quyser, M. A.; Tipper, C. F. H. J. Chem. Soc., Chem. Commun. 1976, 626. For a theoretical discussion and a leading reference, see: Low, J. J.; Goddard, W. A., III. J. Am. Chem. Soc. 1986, 108, 6115.
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For a leading reference on the conversion of metallocyclopentadienes to cyclobutadienes, see
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For a leading reference on the conversion of metallocyclopentadienes to cyclobutadienes, see: Ville, G. A.; Vollhardt, K. P. C.; Winter, M. J. Organometallics 1984, 3, 1177.
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13C enriched methylene iodide. In all reactions, the enriched sample was diluted with unlabeled substrate (1:3 ratio), and all analyses were corrected for this dilution, see: Lombardi, L. Tetrahedron Lett. 1982, 23, 4293. For an improved procedure, see: Lombardi, L. Org. Synth. 1987, 65, 81. Also, see: Okazoe, T.; Hibino, J.; Takai, K.; Nozaki, H. Tetrahedron Lett. 1985, 26, 5581
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13C enriched methylene iodide. In all reactions, the enriched sample was diluted with unlabeled substrate (1:3 ratio), and all analyses were corrected for this dilution, see: Takai, K.; Hotta, Y.; Oshima, K.; Nozaki, H. Tetrahedron Lett. 1978, 19, 2417. Lombardi, L. Tetrahedron Lett. 1982, 23, 4293. For an improved procedure, see: Lombardi, L. Org. Synth. 1987, 65, 81. Also, see: Okazoe, T.; Hibino, J.; Takai, K.; Nozaki, H. Tetrahedron Lett. 1985, 26, 5581.
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Kurosawa, H.; Emoto, M.; Urabe, A. Chem. Commun. 1984, 968. Numata, S.; Kurosawa, H. J. Organomet. Chem. 1977, 131, 301. Temple, J. S.; Riediker, M.; Schwartz, J. J. Am. Chem. soc. 1982. 104. 1310. (19) Crocianai, B.; Boschi, T.; Belluco, U. Inorg. Chem. 1970, 9, 2021. Bonati, F.; Minghetti, G.; Boschi, T.; Crociani, B. J. organomet. Chem. 1970, 25, 255. Miller, J. S.; Balch, A. L. Inorg. Chem. 1972, 11, 2069. Larkin, G. A.; Scott, R. P.; Wallbridge, M. G. H. J. Organomet. Chem. 1972, 37, C21. Busetto, L.; Pallazi, A.; Crociani, B.; Belluco, V.; Badley, E. M.; Kilby, B. J. L.; Richards, R. L. J. Chem. Soc., Dalton Trans. 1972, 1800. Davies, C. H.; Game, C. H.; Green, M.; Stone, F. G. A. J. Chem. Soc., Dalton Trans. 1974, 357. Bartel, K.; Fehlhammer, W. P. Angew. Chem., Int. Ed. Engl. 1974, 13, 599. Cardin, D. J.; Cetinkaya, B.; Cetinkaya, E.; Lappert, M. F. J. Chem. Soc., Dalton Trans. 1973, 514. Clark, H. C.; Jablonski, C. R. Inorg. Chem. 1974, 13, 2213. Clark, H. C.; Fiess, P. L.; Wong, C. S. Can. J. Chem. 1977, 55, 177. For Pd-catalyzed reactions of diazo compounds that may proceed via carbene intermediates, see: Hoffmann, K. L.; Regitz, M. Tetrahedron Lett. 1983, 24, 5355. Bien, S.; Segal, Y. J. Org. Chem. 1977, 42, 1685. Bien, S.; Ovadia, D. J. Org. Chem. 1970, 35, 1028. Anciaux, A. J.; Hubert, A. J.; Noels, A. F.; Petiniot, N.; Teyssie, P. J. Org. Chem. 1980, 45, 695. Mende, U.; Raduchel, B.; Skuballa, W.; Vorbruggen, H. Tetrahedron Lett. 1975, 629. Also, see: Catellani, M.; Chiusoli, G. P. Tetrahedron Lett. 1983, 24, 4493
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Electron-withdrawing ligands on the metal are known to accelerate 1, 1-reductive eliminations, see: Kurosawa, H.; Emoto, M. Chem. Lett. 1985, 1161. Kurosawa, H.; Emoto, M.; Urabe, A. Chem. Commun. 1984, 968. Numata, S.; Kurosawa, H. J. Organomet. Chem. 1977, 131, 301. Temple, J. S.; Riediker, M.; Schwartz, J. J. Am. Chem. soc. 1982. 104. 1310. (19) Crocianai, B.; Boschi, T.; Belluco, U. Inorg. Chem. 1970, 9, 2021. Bonati, F.; Minghetti, G.; Boschi, T.; Crociani, B. J. organomet. Chem. 1970, 25, 255. Miller, J. S.; Balch, A. L. Inorg. Chem. 1972, 11, 2069. Larkin, G. A.; Scott, R. P.; Wallbridge, M. G. H. J. Organomet. Chem. 1972, 37, C21. Busetto, L.; Pallazi, A.; Crociani, B.; Belluco, V.; Badley, E. M.; Kilby, B. J. L.; Richards, R. L. J. Chem. Soc., Dalton Trans. 1972, 1800. Davies, C. H.; Game, C. H.; Green, M.; Stone, F. G. A. J. Chem. Soc., Dalton Trans. 1974, 357. Bartel, K.; Fehlhammer, W. P. Angew. Chem., Int. Ed. Engl. 1974, 13, 599. Cardin, D. J.; Cetinkaya, B.; Cetinkaya, E.; Lappert, M. F. J. Chem. Soc., Dalton Trans. 1973, 514. Clark, H. C.; Jablonski, C. R. Inorg. Chem. 1974, 13, 2213. Clark, H. C.; Fiess, P. L.; Wong, C. S. Can. J. Chem. 1977, 55, 177. For Pd-catalyzed reactions of diazo compounds that may proceed via carbene intermediates, see: Hoffmann, K. L.; Regitz, M. Tetrahedron Lett. 1983, 24, 5355. Bien, S.; Segal, Y. J. Org. Chem. 1977, 42, 1685. Bien, S.; Ovadia, D. J. Org. Chem. 1970, 35, 1028. Anciaux, A. J.; Hubert, A. J.; Noels, A. F.; Petiniot, N.; Teyssie, P. J. Org. Chem. 1980, 45, 695. Mende, U.; Raduchel, B.; Skuballa, W.; Vorbruggen, H. Tetrahedron Lett. 1975, 629. Also, see: Catellani, M.; Chiusoli, G. P. Tetrahedron Lett. 1983, 24, 4493.
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In acetylene trimerizations to benzenes, unusual regioselectivity that arises by formal insertion into an acetylenic bond has been observed as very minor pathways
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Dietl, H.; Reinheimer, H.; Moffat, J.; Maitlis, P. M. J. Am. Chem. Soc. 1970, 92, 2276. Maitlis, P. M. Acc. Chem. Res. 1976, 9, 93. Maitlis, P. M. J. Organomet. Chem. 1980, 200, 161
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In acetylene trimerizations to benzenes, unusual regioselectivity that arises by formal insertion into an acetylenic bond has been observed as very minor pathways. Whitesides, G. M.; Ehmann, W. J. J. Am. Chem. Soc. 1969, 91, 3800. Dietl, H.; Reinheimer, H.; Moffat, J.; Maitlis, P. M. J. Am. Chem. Soc. 1970, 92, 2276. Maitlis, P. M. Acc. Chem. Res. 1976, 9, 93. Maitlis, P. M. J. Organomet. Chem. 1980, 200, 161.
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