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0002333319
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R.H.F. Manske, Academic Press New York
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Yamamura, S.1
Hirata, Y.2
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5
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84896142701
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For a review of recent efforts toward the calyciphylline A-type alkaloids, see:, and references therein
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Kang, B.1
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6
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84894571917
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Efforts published since Ref. 5, or toward other Daphniphyllum alkaloids, include: (a)
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Efforts published since Ref. 5, or toward other Daphniphyllum alkaloids, include: (a) L. Wang, C. Xu, L. Chen, H. Xiaojiang, and D.Z. Wang Org. Lett. 16 2014 1076 1079
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84899460808
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H. Li, Y. Qiu, C. Zhao, Z. Yuan, X. Xie, and X. She Chem. Asian J. 9 2014 1274 1277
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15
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47749133097
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For information on prior cyclizations of neutral aminyl radicals, see: (a)
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Zard, S.Z.1
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17
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11944259741
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J.H. Horner, F.N. Martinez, O.M. Musa, M. Newcomb, and H.E. Shahin J. Am. Chem. Soc. 117 1995 11124 11133
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30
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84929944260
-
-
All reactions in this text are performed in the enantiomeric series relative to the natural product.
-
All reactions in this text are performed in the enantiomeric series relative to the natural product.
-
-
-
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40
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84929943174
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See the Supporting information for details.
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See the Supporting information for details.
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-
-
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41
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84929954547
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The mass of the corresponding imine is observed by LCMS of the crude reaction mixture.
-
The mass of the corresponding imine is observed by LCMS of the crude reaction mixture.
-
-
-
-
42
-
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84929963181
-
-
The quaternary benzyl ammonium salt is observed by LCMS of the crude reaction mixture, implying the existence of BnCl.
-
The quaternary benzyl ammonium salt is observed by LCMS of the crude reaction mixture, implying the existence of BnCl.
-
-
-
-
43
-
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84929947077
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-
Reduction products are observed as a mixture of uncyclized and cyclized forms.
-
Reduction products are observed as a mixture of uncyclized and cyclized forms.
-
-
-
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48
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84929958439
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J.K. Kochi, Wiley New York
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K.U. Ingold J.K. Kochi, Free Radicals Vol. 1 1973 Wiley New York 77
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Ingold, K.U.1
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51
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33744473054
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52
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64549088984
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53
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84929952290
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Scales and isolated yields: 38 mg lactol, 64% yield; 109 mg lactol, 81% yield; 200 mg lactol, 96% yield.
-
Scales and isolated yields: 38 mg lactol, 64% yield; 109 mg lactol, 81% yield; 200 mg lactol, 96% yield.
-
-
-
-
54
-
-
84929945547
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-
Average of 2 runs.
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Average of 2 runs.
-
-
-
-
56
-
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0001304578
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C. Galli, A. Guarnieri, H. Koch, P. Mencarelli, and Z. Rappoport J. Org. Chem. 62 1997 4072 4077
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