-
2
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0001675758
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2. Nussim, M.; Mazur, Y.; Sondheimer, F. J. Org. Chem. 1964, 29, 1120.
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Nussim, M.1
Mazur, Y.2
Sondheimer, F.3
-
3
-
-
0010464674
-
-
note
-
3. Intramolecular aldolization has been employed previously to form 14-hydroxy steroids [see references 10-14]. However, to the best of our knowledge, the nucleophilic component has not previously been a 9-keto group.
-
-
-
-
4
-
-
0016373568
-
-
4. Inubushi, Y.; Kikuchi, T.; Ibuka, T.; Tanaka, K.; Saji, I.; Tokane, K. Chem. Pharm. Bull. 1974, 22, 349.
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Inubushi, Y.1
Kikuchi, T.2
Ibuka, T.3
Tanaka, K.4
Saji, I.5
Tokane, K.6
-
6
-
-
0030064924
-
-
6. Yang, Y.; Haino, T.; Usui, S.; Fukazawa, Y. Tetrahedron 1996, 52, 2325.
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Yang, Y.1
Haino, T.2
Usui, S.3
Fukazawa, Y.4
-
7
-
-
0029850449
-
-
7. Deng, W.; Jensen, M. S.; Overman, L. E.; Rucker, P. V.; Vionnet, J.-P. J. Org. Chem. 1996, 61, 6760.
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Deng, W.1
Jensen, M.S.2
Overman, L.E.3
Rucker, P.V.4
Vionnet, J.-P.5
-
9
-
-
0010422580
-
-
note
-
9. This mixture undoubtedly arises by indiscriminate formation of a mixture of E- and Z-samarium enolates. This scenario has been rigorously established in a related system. Unpublished studies of M. Jensen of this laboratory.
-
-
-
-
10
-
-
0023739352
-
-
10. Yates, P.; Douglas, S. P.; Datta, S. K.; Sawyer, J. F. Can. J. Chem. 1988, 66, 2268.
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Yates, P.1
Douglas, S.P.2
Datta, S.K.3
Sawyer, J.F.4
-
11
-
-
0010464277
-
-
11. Daniewski, A. R.; Valenta, Z.; White, P. S. Bull. Polish Acad. Sci. 1986, 32, 29.
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, pp. 29
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-
Daniewski, A.R.1
Valenta, Z.2
White, P.S.3
-
14
-
-
0028857520
-
-
14. Barlaam, B.; Boivin, J.; Elkaim, L.; Elton-Farr, S.; Zard, S. Z. Tetrahedron 1995, 51, 1675.
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-
Barlaam, B.1
Boivin, J.2
Elkaim, L.3
Elton-Farr, S.4
Zard, S.Z.5
-
15
-
-
0010462272
-
-
note
-
15. We have independently demonstrated that the β epimer of 9 is converted to 11 under these conditions. It is notable that 10 can be prepared and cleaved without unraveling to an enone.
-
-
-
-
16
-
-
0010462112
-
-
note
-
4NSi, MH).
-
-
-
-
17
-
-
33847799030
-
-
17. Trost, B. M.; Salzmann, T. N.; Hiroi, K. J. Am. Chem. Soc. 1976, 98, 4887.
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Trost, B.M.1
Salzmann, T.N.2
Hiroi, K.3
-
18
-
-
0010462838
-
-
note
-
3NS, M).
-
-
-
-
19
-
-
0010503031
-
-
note
-
19. The authors have deposited atomic coordinates for this compound with the Cambridge Crystallographic Data Centre. The coordinates can be obtained, on request, from the Director, Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, UK.
-
-
-
-
20
-
-
0010422236
-
-
note
-
22 in organopalladium reactions has been described.
-
-
-
-
21
-
-
0001327915
-
-
21. Sato, M.; Takai, K.; Oshima, K.; Nozaki, H. Tetrahedron Lett. 1981, 22, 1609.
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, pp. 1609
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Sato, M.1
Takai, K.2
Oshima, K.3
Nozaki, H.4
-
22
-
-
0027519744
-
-
22. Arnau, N.; Moreno-Mañas, M.; Pleixats, R. Tetrahedron 1994, 49, 11019.
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Arnau, N.1
Moreno-Mañas, M.2
Pleixats, R.3
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