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(a) For preliminary communications on the formal [3+3] cycloaddition approach, see: (a) Shen, H. C.; Degen, S. J.; Mulder, J. A.; Hsung, R. P.; Douglas C. J.; Golding, G. M.; Johnson, E. W.; Mathias, D. S.; Morgan, C. D.; Mueller, K. L.; Shih, R. A., Abstract No. ORGN-664, 216th ACS National Meeting, Boston, MA, Fall, 1998. (b) Hsung R.P., Shen H.C., Douglas C.J., Morgan C.D., Degen S.J., Yao L.J. J. Org. Chem. 64:1999;690.
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(a) For preliminary communications on the formal [3+3] cycloaddition approach, see: (a) Shen, H. C.; Degen, S. J.; Mulder, J. A.; Hsung, R. P.; Douglas C. J.; Golding, G. M.; Johnson, E. W.; Mathias, D. S.; Morgan, C. D.; Mueller, K. L.; Shih, R. A., Abstract No. ORGN-664, 216th ACS National Meeting, Boston, MA, Fall, 1998. (b) Hsung R.P., Shen H.C., Douglas C.J., Morgan C.D., Degen S.J., Yao L.J. J. Org. Chem. 64:1999;690.
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For two key accounts predated our studies: (a) Hua D.H., Chen Y., Sin H.-S., Maroto M.J., Robinson P.D., Newell S.W., Perchellet E.M., Ladesich J.B., Freeman J.A., Perchellet J.-P., Chiang P.K. J. Org. Chem. 62:1997;6888 (b) Jonassohn M., Sterner O., Anke H. Tetrahedron. 52:1996;1473.
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For related studies, see: (a) Cravotto G., Nano G.M., Tagliapietra S. Synthesis. 2001;49 (b) Hua D.H., Chen Y., Sin H.-S., Robinson P.D., Meyers C.Y., Perchellet E.M., Perchellet J.-P., Chiang P.K., Biellmann J.-P. Acta Crystallogr. C55:1999;1698 (c) Krasnaya Z.A., Bogdanov V.S., Burova S.A., Smirnova Y.V. Russ. Chem. 44:1995;2118 (d) Heber D., Berghaus T. J. Heterocycl. Chem. 31:1994;1353 (e) Appendino G., Cravotto G., Tagliapietra S., Nano G.M., Palmisano G. Helv. Chim. Acta. 73:1990;1865 (f) Schuda P.F., Price W.A. J. Org. Chem. 52:1987;1972 (g) de March P., Moreno-Mañas M., Casado J., Pleixats R., Roca J.L., Trius A. J. Heterocycl. Chem. 21:1984;85. see also 1369.
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For aza-variant of this formal [3+3] cycloaddition reaction using vinylogous amides, see: (a) Sklenicka H.M., Hsung R.P., McLaughlin M.J., Wei L.-L., Gerasyuto A.I., Brennessel W.W. J. Am. Chem. Soc. 124:2002;10435 (b) Wei L.-L., Sklenicka H.M., Gerasyuto A.I., Hsung R.P. Angew. Chem. Int. Ed. 40:2001;1516 (c) Sklenicka H.M., Hsung R.P., Wei L.-L., McLaughlin M.J., Gerasyuto A.I., Degen S.J., Mulder J.A. Org. Lett. 2:2000;1161 (d) Hsung R.P., Wei L.-L., Sklenicka H.M., Douglas C.J., McLaughlin M.J., Mulder J.A., Yao L. J. Org. Lett. 1:1999;509.
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For aza-variant of this formal [3+3] cycloaddition reaction using vinylogous amides, see: (a) Sklenicka H.M., Hsung R.P., McLaughlin M.J., Wei L.-L., Gerasyuto A.I., Brennessel W.W. J. Am. Chem. Soc. 124:2002;10435 (b) Wei L.-L., Sklenicka H.M., Gerasyuto A.I., Hsung R.P. Angew. Chem. Int. Ed. 40:2001;1516 (c) Sklenicka H.M., Hsung R.P., Wei L.-L., McLaughlin M.J., Gerasyuto A.I., Degen S.J., Mulder J.A. Org. Lett. 2:2000;1161 (d) Hsung R.P., Wei L.-L., Sklenicka H.M., Douglas C.J., McLaughlin M.J., Mulder J.A., Yao L. J. Org. Lett. 1:1999;509.
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Angew. Chem. Int. Ed.
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Wei, L.-L.1
Sklenicka, H.M.2
Gerasyuto, A.I.3
Hsung, R.P.4
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38
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0000193493
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For aza-variant of this formal [3+3] cycloaddition reaction using vinylogous amides, see: (a) Sklenicka H.M., Hsung R.P., McLaughlin M.J., Wei L.-L., Gerasyuto A.I., Brennessel W.W. J. Am. Chem. Soc. 124:2002;10435 (b) Wei L.-L., Sklenicka H.M., Gerasyuto A.I., Hsung R.P. Angew. Chem. Int. Ed. 40:2001;1516 (c) Sklenicka H.M., Hsung R.P., Wei L.-L., McLaughlin M.J., Gerasyuto A.I., Degen S.J., Mulder J.A. Org. Lett. 2:2000;1161 (d) Hsung R.P., Wei L.-L., Sklenicka H.M., Douglas C.J., McLaughlin M.J., Mulder J.A., Yao L. J. Org. Lett. 1:1999;509.
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Org. Lett.
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Sklenicka, H.M.1
Hsung, R.P.2
Wei, L.-L.3
McLaughlin, M.J.4
Gerasyuto, A.I.5
Degen, S.J.6
Mulder, J.A.7
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39
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0000546380
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For aza-variant of this formal [3+3] cycloaddition reaction using vinylogous amides, see: (a)
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For aza-variant of this formal [3+3] cycloaddition reaction using vinylogous amides, see: (a) Sklenicka H.M., Hsung R.P., McLaughlin M.J., Wei L.-L., Gerasyuto A.I., Brennessel W.W. J. Am. Chem. Soc. 124:2002;10435 (b) Wei L.-L., Sklenicka H.M., Gerasyuto A.I., Hsung R.P. Angew. Chem. Int. Ed. 40:2001;1516 (c) Sklenicka H.M., Hsung R.P., Wei L.-L., McLaughlin M.J., Gerasyuto A.I., Degen S.J., Mulder J.A. Org. Lett. 2:2000;1161 (d) Hsung R.P., Wei L.-L., Sklenicka H.M., Douglas C.J., McLaughlin M.J., Mulder J.A., Yao L. J. Org. Lett. 1:1999;509.
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J. Org. Lett.
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Hsung, R.P.1
Wei, L.-L.2
Sklenicka, H.M.3
Douglas, C.J.4
McLaughlin, M.J.5
Mulder, J.A.6
Yao, L.7
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40
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0037034346
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For Õmura's approach, see: (a) Handa M., Sunazuka T., Nagai K., Kimura R., Shirahata T., Tian Z.M., Otoguro K., Harigaya Y., Õmura S. J. Antibiotics. 54:2001;382. For their total synthesis of (±)-arisugacin A, see: (b) Sunazuka T., Handa M., Nagai K., Shirahata T., Harigaya Y. Org. Lett. 4:2002;367.
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J. Antibiotics
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Handa, M.1
Sunazuka, T.2
Nagai, K.3
Kimura, R.4
Shirahata, T.5
Tian, Z.M.6
Otoguro, K.7
Harigaya, Y.8
Õmura, S.9
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41
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0037034346
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For Õmura's approach, see: (a). For their total synthesis of (±)-arisugacin A, see: (b)
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For Õmura's approach, see: (a) Handa M., Sunazuka T., Nagai K., Kimura R., Shirahata T., Tian Z.M., Otoguro K., Harigaya Y., Õmura S. J. Antibiotics. 54:2001;382. For their total synthesis of (±)-arisugacin A, see: (b) Sunazuka T., Handa M., Nagai K., Shirahata T., Harigaya Y. Org. Lett. 4:2002;367.
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Org. Lett.
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Sunazuka, T.1
Handa, M.2
Nagai, K.3
Shirahata, T.4
Harigaya, Y.5
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42
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0037193114
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For our total synthesis, see: (a) Wang J., Cole K.P., Wei L.L., Zehnder L.R., Hsung R.P. Tetrahedron Lett. 43:2002;3337 (b) Cole K.P., Hsung R.P., Yang X.-F. Tetrahedron Lett. 43:2002;3341.
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Tetrahedron Lett.
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Wang, J.1
Cole, K.P.2
Wei, L.L.3
Zehnder, L.R.4
Hsung, R.P.5
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43
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0037193115
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For our total synthesis, see: (a)
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For our total synthesis, see: (a) Wang J., Cole K.P., Wei L.L., Zehnder L.R., Hsung R.P. Tetrahedron Lett. 43:2002;3337 (b) Cole K.P., Hsung R.P., Yang X.-F. Tetrahedron Lett. 43:2002;3341.
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Tetrahedron Lett.
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Cole, K.P.1
Hsung, R.P.2
Yang, X.-F.3
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44
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85001821277
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under review
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For a detailed account on formal [3+3] cycloaddition reaction, see: Shen, H. C.; Morgan, C. D.; Wang, J.; Cole, K. P.; Douglas, C. J.; Hsung, R. P.; Coverdale, H. A.; Hahn, J. M.; Liu, J.; McLaughlin, M. J.; Wei, L.-L.; Zehnder, L. R.; Zificsak, C. A. J. Org. Chem. 2002, under review.
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J. Org. Chem.
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Shen, H.C.1
Morgan, C.D.2
Wang, J.3
Cole, K.P.4
Douglas, C.J.5
Hsung, R.P.6
Coverdale, H.A.7
Hahn, J.M.8
Liu, J.9
McLaughlin, M.J.10
Wei, L.-L.11
Zehnder, L.R.12
Zificsak, C.A.13
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46
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0021716943
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(b) Jenkins P.R., Menear K.A., Barraclough P., Nobbs M.S. J. Chem. Soc., Chem. Commun. 1984;1423
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J. Chem. Soc., Chem. Commun.
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Jenkins, P.R.1
Menear, K.A.2
Barraclough, P.3
Nobbs, M.S.4
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50
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85001822216
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2O, or piperidinium salts as well as other amine salts. Hydrochloride salts tend to be even more reactive. L-Proline does not work well for this reaction contrary to other literature accounts, especially in EtOAc
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2O, or piperidinium salts as well as other amine salts. Hydrochloride salts tend to be even more reactive. L-Proline does not work well for this reaction contrary to other literature accounts, especially in EtOAc.
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53
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0033607796
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Douglas C.J., Sklenicka H.M., Shen H.C., Golding G.M., Mathias D.S., Degen S.J., Morgan C.D., Shih R.A., Mueller K.L., Seurer L.M., Johnson E.W., Hsung R.P. Tetrahedron. 55:1999;13683.
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Tetrahedron
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Douglas, C.J.1
Sklenicka, H.M.2
Shen, H.C.3
Golding, G.M.4
Mathias, D.S.5
Degen, S.J.6
Morgan, C.D.7
Shih, R.A.8
Mueller, K.L.9
Seurer, L.M.10
Johnson, E.W.11
Hsung, R.P.12
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54
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0035850284
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Zehnder L.R., Wei L.-L., Hsung R.P., Cole K.P., McLaughlin M.J., Shen H.C., Sklenicka H.M., Wang J., Zificsak C.A. Org. Lett. 3:2001;2141.
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Org. Lett.
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Zehnder, L.R.1
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Hsung, R.P.3
Cole, K.P.4
McLaughlin, M.J.5
Shen, H.C.6
Sklenicka, H.M.7
Wang, J.8
Zificsak, C.A.9
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55
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0003733970
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Abstract No. ORGN-51, Washington D.C., Spring
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For a much earlier preliminary communication, see: Zehnder, L. R.; Hsung, R. P.; Wang, J., Abstract No. ORGN-51, 220th ACS National Meeting, Washington D.C., Spring, 2000.
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(2000)
220th ACS National Meeting
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Zehnder, L.R.1
Hsung, R.P.2
Wang, J.3
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56
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0003516033
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Abstract No. ORGN-178, Chicago, IL, Fall
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For a preliminary communication on these results, see: Cole, K. P.; Zehnder, L. T.; Wei, L.-L.; Wang, J.; Hsung, R. P., Abstract No. ORGN-178, 222nd ACS National Meeting, Chicago, IL, Fall, 2001.
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(2001)
222nd ACS National Meeting
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Cole, K.P.1
Zehnder, L.T.2
Wei, L.-L.3
Wang, J.4
Hsung, R.P.5
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57
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85001835210
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When using various peroxyacids, the best result gave the tentatively assigned hexacycle (Ref. 28) as the major product in 28% yield with the desired product in only 21% yield unlike those reported (Ref. 16)
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When using various peroxyacids, the best result gave the tentatively assigned hexacycle (Ref. 28) as the major product in 28% yield with the desired product in only 21% yield unlike those reported (Ref. 16).
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58
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85001700655
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The hexacycle was likely a result of intramolecular trapping of the incipient oxocarbenium intermediate by the C1-OH. Such facile trapping by oxygen nucleophiles agrees well with our previous experience in the model studies and with the hexacycle that at this point is not useful for the arisugacin synthesis
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The hexacycle was likely a result of intramolecular trapping of the incipient oxocarbenium intermediate by the C1-OH. Such facile trapping by oxygen nucleophiles agrees well with our previous experience in the model studies and with the hexacycle that at this point is not useful for the arisugacin synthesis.
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