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45
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0000794592
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and were prepared along the same lines; we used the methyl esters simply as a matter of convenience
-
15 The ethyl esters corresponding to 8 have been reported (Dieter, R. K.; Sharma, R. R. J. Org. Chem. 1996, 61, 4180-4184), and were prepared along the same lines; we used the methyl esters simply as a matter of convenience.
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0029117655
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16 The corresponding ethyl esters are available by an analogous procedure: Collado, I.; Ezquerra, J.; Pedregal, C. J. Org. Chem. 1995, 60, 5011-5015.
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0023943486
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17 Cf. (a) Suzuki, M.; Kawagishi, T.; Yanagisawa, A.; Suzuki, T.; Okamura, N.; Noyori, R. Bull. Chem,. Soc. Jpn. 1988, 61, 1299-1312.
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49
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0000418666
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for deoxygenation, but this procedure was not successful
-
2Ph, R′ = OMe or SPh; R″ = CHO) a palladium-based method (Cf. Mandai, T.; Matsumoto, T.; Tsujiguchi, Y.; Matsuoka, S.; Tsuji, J. J. Organomet. Chem. 1994, 474, 343-352) for deoxygenation, but this procedure was not successful. We did not try the case for R = Ms (Cf. Whitlock, G. A.; Carreira, E. M. J. Org. Chem. 1997, 62, 7916-7917).
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50
-
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0030724652
-
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2Ph, R′ = OMe or SPh; R″ = CHO) a palladium-based method (Cf. Mandai, T.; Matsumoto, T.; Tsujiguchi, Y.; Matsuoka, S.; Tsuji, J. J. Organomet. Chem. 1994, 474, 343-352) for deoxygenation, but this procedure was not successful. We did not try the case for R = Ms (Cf. Whitlock, G. A.; Carreira, E. M. J. Org. Chem. 1997, 62, 7916-7917).
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Whitlock, G.A.1
Carreira, E.M.2
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51
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0010424982
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note
-
(Equation Presented)
-
-
-
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52
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0029048010
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19 Cf. Harusawa, S.; Moriyama, H.; Kase, N.; Ohishi, H.; Yoneda, R.; Kurihara, T. Tetrahedron 1995, 51, 6475-6494.
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Harusawa, S.1
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Kase, N.3
Ohishi, H.4
Yoneda, R.5
Kurihara, T.6
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53
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0024208763
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20 For early studies on radical cyclization of 2-(phenylthio)pyrrolidones, see, for example: Dener, J. M.; Hart, D J.; Ramesh, S. J. Org. Chem. 1988, 53, 6022-6030.
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Dener, J.M.1
Hart, D.J.2
Ramesh, S.3
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55
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0010461265
-
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note
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3) (reference 11f).
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