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3. Miles, W. H.; Berreth, C. L.; Smiley, P. M. Tetrahedron Lett. 1993, 34, 5221.
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Miles, W.H.1
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4
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84981808066
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Hoffmann, H.M.R.1
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5
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6744264109
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Mikami, K.1
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84985180967
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Maischein, J.1
Vilsmaier, E.2
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7
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0011992295
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Gajewski, J.J.1
Gortva, A.M.2
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8
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0001749334
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Tidwell, J.H.1
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9
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0001656764
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4. For reviews of the ene reaction see Hoffmann, H. M. R. Angew. Chem., Int. Ed. Engl. 1969, 8, 556. Mikami, K.; Shimizu, M. Chem. Rev. 1992, 92, 1021. For further examples of the ene reaction of alicyclic isomers of aromatic compounds see Maischein, J.; Vilsmaier, E. Liebigs Am. Chem. 1988, 371. Gajewski, J. J.; Gortva, A. M. J. Org. Chem. 1989, 54, 373. Tidwell, J. H.; Senn, D. R.; Buchwald, S. L. J. Am Chem. Soc. 1991, 113, 4685. Ojida, A.; Abe, A.; Kanematsu, K. Heterocycles 1994, 38, 2585.
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Ojida, A.1
Abe, A.2
Kanematsu, K.3
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10
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85030288280
-
-
note
-
5. In addition to our initial report of the ene reaction of 1 with methyl vinyl ketone, acrylonitrile and ethyl acrylate, we have found that the reaction of 1 with acrolein, maleic anhydride and vinyltriphenylphosphonium bromide gives good yields of the ene product. The isomer of 1,3-methylfuran, does not react with enophiles under these conditions or under the conditions described in this paper. Experimental details will be reported in the full paper describing the ene reactions of 1 with various enophiles.
-
-
-
-
12
-
-
85030287346
-
-
note
-
-1
-
-
-
-
13
-
-
33845552460
-
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8. Lanthanide catalysis of the hetero-Diels-Alder reaction and the ene reaction has been previously noted. Bednarski, M.; Danishefsky, S. J. Am. Chem. Soc. 1983, 105, 3716. Ziegler, F. E.; Sobolov, S. B. J. Am. Chem. Soc. 1990, 112, 2749. Deaton, M. V.; Ciufolini, M. A. Tetrahedron Lett. 1993, 34, 2409.
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Bednarski, M.1
Danishefsky, S.2
-
14
-
-
0025330437
-
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8. Lanthanide catalysis of the hetero-Diels-Alder reaction and the ene reaction has been previously noted. Bednarski, M.; Danishefsky, S. J. Am. Chem. Soc. 1983, 105, 3716. Ziegler, F. E.; Sobolov, S. B. J. Am. Chem. Soc. 1990, 112, 2749. Deaton, M. V.; Ciufolini, M. A. Tetrahedron Lett. 1993, 34, 2409.
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Ziegler, F.E.1
Sobolov, S.B.2
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15
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0027471801
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8. Lanthanide catalysis of the hetero-Diels-Alder reaction and the ene reaction has been previously noted. Bednarski, M.; Danishefsky, S. J. Am. Chem. Soc. 1983, 105, 3716. Ziegler, F. E.; Sobolov, S. B. J. Am. Chem. Soc. 1990, 112, 2749. Deaton, M. V.; Ciufolini, M. A. Tetrahedron Lett. 1993, 34, 2409.
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0019928219
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9. Snider, B. B.; Rodini, D. J.; Kirk, T. C.; Cordova, R. J. Am. Chem. Soc. 1982, 104, 555. Jackson, A. C.; Goldman, B. E.; Snider, B. B. J. Org. Chem. 1984, 49, 3988.
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Snider, B.B.1
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Cordova, R.4
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17
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0001209009
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9. Snider, B. B.; Rodini, D. J.; Kirk, T. C.; Cordova, R. J. Am. Chem. Soc. 1982, 104, 555. Jackson, A. C.; Goldman, B. E.; Snider, B. B. J. Org. Chem. 1984, 49, 3988.
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Jackson, A.C.1
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19
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0000881264
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11. For a previous study involving the ene reaction of 2-phenylpropionaldehyde, see Cartaya-Marin, C. P.; Jackson, A. C.; Snider, B. B. J. Org. Chem. 1984, 49, 2443.
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20
-
-
85030286876
-
-
note
-
12. The stereochemistry of the two diastereotopic alcohols has not been definitively determined.
-
-
-
-
21
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-
0001263996
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-
13. The stereochemistry was assigned by comparing the spectroscopic data of alcohol 3 to (2R,3S)-and (2R,3R)-1,2-O-isopropylidene-4-phenylbutane-1,2,3-triol. Melon, D.; Gravier-Pelletier, C.; Le Merrer, Y.; Depezay, J. C. Bull. Soc. Chim. Fr. 1992, 129, 585.
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Melon, D.1
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0346630127
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14. Mikami, K.; Terada, M.; Nakai, T. J. Am. Chem. Soc. 1990, 112, 3949.
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12044252883
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15. See also Costa, A. L.; Piazza, M. G.; Tagliavini, E.; Trombini, C.; Umani-Ronchi, A. J. Am. Chem. Soc. 1993, 115, 7001. Keck, G. E.; Tarbet, K. H.; Geraci, L. S. J. Am. Chem. Soc. 1993, 115, 8467. Keck, G. E.; Krishnamurthy, D. J. Am. Chem. Soc. 1995, 117, 2363. Carreira, E. M.; Singer, R. A.; Lee, W. J. Am. Chem. Soc. 1994, 116, 8837.
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24
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0001488391
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15. See also Costa, A. L.; Piazza, M. G.; Tagliavini, E.; Trombini, C.; Umani-Ronchi, A. J. Am. Chem. Soc. 1993, 115, 7001. Keck, G. E.; Tarbet, K. H.; Geraci, L. S. J. Am. Chem. Soc. 1993, 115, 8467. Keck, G. E.; Krishnamurthy, D. J. Am. Chem. Soc. 1995, 117, 2363. Carreira, E. M.; Singer, R. A.; Lee, W. J. Am. Chem. Soc. 1994, 116, 8837.
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0000013894
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15. See also Costa, A. L.; Piazza, M. G.; Tagliavini, E.; Trombini, C.; Umani-Ronchi, A. J. Am. Chem. Soc. 1993, 115, 7001. Keck, G. E.; Tarbet, K. H.; Geraci, L. S. J. Am. Chem. Soc. 1993, 115, 8467. Keck, G. E.; Krishnamurthy, D. J. Am. Chem. Soc. 1995, 117, 2363. Carreira, E. M.; Singer, R. A.; Lee, W. J. Am. Chem. Soc. 1994, 116, 8837.
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15. See also Costa, A. L.; Piazza, M. G.; Tagliavini, E.; Trombini, C.; Umani-Ronchi, A. J. Am. Chem. Soc. 1993, 115, 7001. Keck, G. E.; Tarbet, K. H.; Geraci, L. S. J. Am. Chem. Soc. 1993, 115, 8467. Keck, G. E.; Krishnamurthy, D. J. Am. Chem. Soc. 1995, 117, 2363. Carreira, E. M.; Singer, R. A.; Lee, W. J. Am. Chem. Soc. 1994, 116, 8837.
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Carreira, E.M.1
Singer, R.A.2
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17. Cimino, G.; De Rosa, S.; De Stevano, S., Morrone, R.; Sodano, G. Tetrahedron 1985, 41, 1093.
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Cimino, G.1
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Morrone, R.4
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