-
1
-
-
33745034381
-
-
Cookson, R. C.; Drake, B. V.; Hudec, J.; Morrison, A. J. Chem. Soc., Chem. Commun. 1966, 15.
-
(1966)
J. Chem. Soc., Chem. Commun.
, pp. 15
-
-
Cookson, R.C.1
Drake, B.V.2
Hudec, J.3
Morrison, A.4
-
2
-
-
0000602241
-
-
(a) Garst, M. E.; Roberts, V. A.; Prussin, C. Tetrahedron 1983, 39, 581.
-
(1983)
Tetrahedron
, vol.39
, pp. 581
-
-
Garst, M.E.1
Roberts, V.A.2
Prussin, C.3
-
3
-
-
0001577003
-
-
(b) Garst, M. E.; Roberts, V. A.; Houk, K. N.; Rondan, N. G. J. Am. Chem. Soc. 1984, 106, 3882.
-
(1984)
J. Am. Chem. Soc.
, vol.106
, pp. 3882
-
-
Garst, M.E.1
Roberts, V.A.2
Houk, K.N.3
Rondan, N.G.4
-
5
-
-
0032546305
-
-
For related modifications of tropylium [6+4] adducts, see: (a) Rigby, J. H.; Fales, K. R. Tetrahedron Lett. 1998, 39, 1525.
-
(1998)
Tetrahedron Lett.
, vol.39
, pp. 1525
-
-
Rigby, J.H.1
Fales, K.R.2
-
7
-
-
0000515680
-
-
Rigby, J. H.; Rege, S. D.; Sandanayaka, V. P.; Kirova, M. J. Org. Chem. 1996, 61, 842.
-
(1996)
J. Org. Chem.
, vol.61
, pp. 842
-
-
Rigby, J.H.1
Rege, S.D.2
Sandanayaka, V.P.3
Kirova, M.4
-
8
-
-
0030948407
-
-
(a) Dabrah, T. T.; Kaneko, T.; Massefski, W., Jr.; Whipple, E. B. J. Am. Chem. Soc. 1997, 119, 1594.
-
(1997)
J. Am. Chem. Soc.
, vol.119
, pp. 1594
-
-
Dabrah, T.T.1
Kaneko, T.2
Massefski W., Jr.3
Whipple, E.B.4
-
9
-
-
15644373055
-
-
(b) Dabrah, T. T.; Harwood, H. J., Jr.; Huang, L. H.; Jankovich, N. D.; Keneko, T.; Li, J.-C.; Linjdsey, S.; Moshier, P. M.; Subashi, T. A.; Therrien, M.; Watts, P. C. J. Antibiot. 1997, 50, 1.
-
(1997)
J. Antibiot.
, vol.50
, pp. 1
-
-
Dabrah, T.T.1
Harwood H.J., Jr.2
Huang, L.H.3
Jankovich, N.D.4
Keneko, T.5
Li, J.-C.6
Linjdsey, S.7
Moshier, P.M.8
Subashi, T.A.9
Therrien, M.10
Watts, P.C.11
-
10
-
-
0034678605
-
-
For a review, see: Starr, J. T.; Carreira, E. M. Angew. Chem., Int. Ed. 2000, 39, 1415.
-
(2000)
Angew. Chem., Int. Ed.
, vol.39
, pp. 1415
-
-
Starr, J.T.1
Carreira, E.M.2
-
11
-
-
0033152137
-
-
(a) Nicolaou, K. C.; Baran, P. S.; Zhong, Y.-L.; Pong, K. C.; He, Y.; Yoon, W. H.; Choi, H.-S. Angew. Chem, Int. Ed. 1999, 38, 1676.
-
(1999)
Angew. Chem, Int. Ed.
, vol.38
, pp. 1676
-
-
Nicolaou, K.C.1
Baran, P.S.2
Zhong, Y.-L.3
Pong, K.C.4
He, Y.5
Yoon, W.H.6
Choi, H.-S.7
-
12
-
-
0034658143
-
-
(b) Nicolaou, K. C.; Jung, J.-K.; Yoon, W. H.; He, Y.; Zhong, Y.-L.; Baran, P. S. Angew. Chem., Int. Ed. 2000, 39, 1829.
-
(2000)
Angew. Chem., Int. Ed.
, vol.39
, pp. 1829
-
-
Nicolaou, K.C.1
Jung, J.-K.2
Yoon, W.H.3
He, Y.4
Zhong, Y.-L.5
Baran, P.S.6
-
13
-
-
0033517815
-
-
(c) Meng, D.; Tan, Q.; Danishefsky, S. J. Angew. Chem., Int. Ed. 1999, 38, 3197.
-
(1999)
Angew. Chem., Int. Ed.
, vol.38
, pp. 3197
-
-
Meng, D.1
Tan, Q.2
Danishefsky, S.J.3
-
14
-
-
0034596347
-
-
(d) Chen, C.; Layton, M. E.; Sheehan, S. M.; Shair, M. D. J. Am. Chem. Soc. 2000, 122, 7424.
-
(2000)
J. Am. Chem. Soc.
, vol.122
, pp. 7424
-
-
Chen, C.1
Layton, M.E.2
Sheehan, S.M.3
Shair, M.D.4
-
15
-
-
0034675030
-
-
(e) Waizumi, N.; Itoh, T.; Fukuyama, T. J. Am. Chem. Soc. 2000, 122, 7825.
-
(2000)
J. Am. Chem. Soc.
, vol.122
, pp. 7825
-
-
Waizumi, N.1
Itoh, T.2
Fukuyama, T.3
-
18
-
-
0000535514
-
-
Ito, S.; Sakan, K.; Fujise, Y. Tetrahedron Lett. 1970, 11, 2873. Ito et al. reported that reaction of tropone and cyclopentadiene in the presence of pTsOH afforded a 65% yield of 11 and a 15% yield of a mixture of [4+2] adducts, although the solvent, temperature, and amount of catalyst were not specified. We have found that use of 10% pTsOH in toluene afforded a 40% yield of 11 along with 38% of the [4+2] adduct, 12.
-
(1970)
Tetrahedron Lett.
, vol.11
, pp. 2873
-
-
Ito, S.1
Sakan, K.2
Fujise, Y.3
-
19
-
-
0001078224
-
-
Rigby, J. H.; Ateeq, H. S.; Charles, N. R.; Cuisiat, S. V.; Ferguson, M. D.; Henshilwood, J. A.; Krueger, C.; Ogbu, C. O.; Short, K. M.; Heeg, M. J. J. Am. Chem. Soc. 1993, 115, 1382 . For a thermal version using a catalytic amount of chromium, see: Rigby, J. H.; Fiedler, C. J. Org. Chem. 1997, 62, 6106.
-
(1993)
J. Am. Chem. Soc.
, vol.115
, pp. 1382
-
-
Rigby, J.H.1
Ateeq, H.S.2
Charles, N.R.3
Cuisiat, S.V.4
Ferguson, M.D.5
Henshilwood, J.A.6
Krueger, C.7
Ogbu, C.O.8
Short, K.M.9
Heeg, M.J.10
-
20
-
-
0001556437
-
-
Rigby, J. H.; Ateeq, H. S.; Charles, N. R.; Cuisiat, S. V.; Ferguson, M. D.; Henshilwood, J. A.; Krueger, C.; Ogbu, C. O.; Short, K. M.; Heeg, M. J. J. Am. Chem. Soc. 1993, 115, 1382 . For a thermal version using a catalytic amount of chromium, see: Rigby, J. H.; Fiedler, C. J. Org. Chem. 1997, 62, 6106.
-
(1997)
J. Org. Chem.
, vol.62
, pp. 6106
-
-
Rigby, J.H.1
Fiedler, C.2
-
22
-
-
0027262676
-
-
Kobayashi, S.; Hachiya, I.; Araki, M.; Ishitani, H. Tetrahedron Lett. 1993, 24, 3755.
-
(1993)
Tetrahedron Lett.
, vol.24
, pp. 3755
-
-
Kobayashi, S.1
Hachiya, I.2
Araki, M.3
Ishitani, H.4
-
23
-
-
0001592335
-
-
2-Trimethylsilyloxycyclopentadiene and 2-triethylsilyloxy-cyclopentadiene were prepared by silylation of 2-cyclopentenone with the corresponding silyl triflates and triethylamine. See: Plenio, H.; Aberle, C. Organometallics 1997, 16, 5950.
-
(1997)
Organometallics
, vol.16
, pp. 5950
-
-
Plenio, H.1
Aberle, C.2
-
24
-
-
0042220528
-
-
note
-
"Even" or "odd" regioselectivity in this case refers to the number of atoms along the shortest path between the functional groups in the cycloadduct.
-
-
-
-
25
-
-
33845555520
-
-
Tropones 16, 18, and 20 were prepared by rhodium acetate catalyzed reaction of ethyl diazoacetate with anisole to give three cycloheptatrienes, which may be separated by chromatography and individually oxidized with bromine to afford the tropones. See: (a) Garst, M. E.; Roberts, V. A. J. Org. Chem. 1982, 47, 2188.
-
(1982)
J. Org. Chem.
, vol.47
, pp. 2188
-
-
Garst, M.E.1
Roberts, V.A.2
-
26
-
-
0001432893
-
-
(b) Anciaux, A. J.; Demonceau, A.; Noels, A. F.; Hubert, A. J.; Warin, R.; Teyssie, P. J. Org. Chem. 1981, 46, 873.
-
(1981)
J. Org. Chem.
, vol.46
, pp. 873
-
-
Anciaux, A.J.1
Demonceau, A.2
Noels, A.F.3
Hubert, A.J.4
Warin, R.5
Teyssie, P.6
-
27
-
-
0042220529
-
-
Rigby, J. H.; Moore, T. L.; Rege, S. J. Org. Chem. 1986, 51, 2400.
-
(1986)
J. Org. Chem.
, vol.51
, pp. 2400
-
-
Rigby, J.H.1
Moore, T.L.2
Rege, S.3
-
28
-
-
0042220527
-
-
Ito, S.; Sakan, K.; Fujise, Y. Tetrahedron Lett. 1969, 10, 715.
-
(1969)
Tetrahedron Lett.
, vol.10
, pp. 715
-
-
Ito, S.1
Sakan, K.2
Fujise, Y.3
-
29
-
-
0041720151
-
-
Fujise, Y.; Mazaki, Y.; Shiokawa, T.; Fukazawa, Y.; Ito, S. Tetrahedron Lett. 1984, 25, 3611.
-
(1984)
Tetrahedron Lett.
, vol.25
, pp. 3611
-
-
Fujise, Y.1
Mazaki, Y.2
Shiokawa, T.3
Fukazawa, Y.4
Ito, S.5
-
30
-
-
33947086888
-
-
(a) Bürgi, H. B.; Dunitz, J. D.; Shefter, E. J. J. Am. Chem. Soc. 1973, 95, 5065.
-
(1973)
J. Am. Chem. Soc.
, vol.95
, pp. 5065
-
-
Bürgi, H.B.1
Dunitz, J.D.2
Shefter, E.J.3
-
31
-
-
0001109389
-
-
(b) Bürgi, H. B.; Dunitz, J. D.; Lehn, J. M.; Wipff, G. Tetrahedron 1974, 30, 1563.
-
(1974)
Tetrahedron
, vol.30
, pp. 1563
-
-
Bürgi, H.B.1
Dunitz, J.D.2
Lehn, J.M.3
Wipff, G.4
-
32
-
-
0042220526
-
-
Li, Z.-H.; Mori, A.; Kato, N.; Takeshita, H. Bull. Chem. Soc. Jpn. 1991, 64, 2778.
-
(1991)
Bull. Chem. Soc. Jpn.
, vol.64
, pp. 2778
-
-
Li, Z.-H.1
Mori, A.2
Kato, N.3
Takeshita, H.4
-
33
-
-
0041720150
-
-
For related eliminations, see: (a) Warnhoff, E. W.; Wong, C. M.; Tai, W. T. J. Org. Chem. 1967, 32, 2664.
-
(1967)
J. Org. Chem.
, vol.32
, pp. 2664
-
-
Warnhoff, E.W.1
Wong, C.M.2
Tai, W.T.3
-
36
-
-
0033577820
-
-
(d) Meng, D.; Danishefsky, S. J. Angew. Chem., Int. Ed. 1999, 38, 1485.
-
(1999)
Angew. Chem., Int. Ed.
, vol.38
, pp. 1485
-
-
Meng, D.1
Danishefsky, S.J.2
|