-
1
-
-
0027730105
-
-
Ishibashi, M.; Sato, M.; Kobayashi, J. J. Org. Chem. 1993, 58, 6928-6929.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 6928-6929
-
-
Ishibashi, M.1
Sato, M.2
Kobayashi, J.3
-
3
-
-
70349783704
-
-
Ko, H. M.; Lee, C. W.; Kwon, H. K.; Chung, H. S.; Choi, S. Y.; Chung, Y. K.; Lee, E. Angew. Chem., Int. Ed. 2009, 48, 2364-2366.
-
(2009)
Angew. Chem., Int. Ed.
, vol.48
, pp. 2364-2366
-
-
Ko, H.M.1
Lee, C.W.2
Kwon, H.K.3
Chung, H.S.4
Choi, S.Y.5
Chung, Y.K.6
Lee, E.7
-
5
-
-
25444476745
-
-
(b) Andreou, T.; Costa, A. M.; Esteban, L.; Gonzàlez, L.; Mas, G.; Vilarrasa, J. Org. Lett. 2005, 7, 4083-4086.
-
(2005)
Org. Lett.
, vol.7
, pp. 4083-4086
-
-
Andreou, T.1
Costa, A.M.2
Esteban, L.3
Gonzàlez, L.4
Mas, G.5
Vilarrasa, J.6
-
6
-
-
84864047456
-
-
Sikorska, J.; Hau, A. M.; Anklin, C.; Parker-Nance, S.; Davies-Coleman, M. T.; Ishmael, J. E.; McPhail, K. L. J. Org. Chem. 2012, 77, 6066-6075.
-
(2012)
J. Org. Chem.
, vol.77
, pp. 6066-6075
-
-
Sikorska, J.1
Hau, A.M.2
Anklin, C.3
Parker-Nance, S.4
Davies-Coleman, M.T.5
Ishmael, J.E.6
McPhail, K.L.7
-
7
-
-
84898903416
-
-
(a) Willwacher, J.; Furstner, A. Angew. Chem., Int. Ed. 2014, 53, 4217-4221.
-
(2014)
Angew. Chem., Int. Ed.
, vol.53
, pp. 4217-4221
-
-
Willwacher, J.1
Furstner, A.2
-
8
-
-
84902357496
-
-
(b) Lei, H.; Yan, J.; Liu, Y.; Xu, Z.; Ye, T. Angew. Chem., Int. Ed. 2014, 53, 6533-6537.
-
(2014)
Angew. Chem., Int. Ed.
, vol.53
, pp. 6533-6537
-
-
Lei, H.1
Yan, J.2
Liu, Y.3
Xu, Z.4
Ye, T.5
-
9
-
-
84900856822
-
-
(c) Reddy, K.; Yamini, V.; Singarapu, K. K.; Gosh, S. Org. Lett. 2014, 16, 2658-2660.
-
(2014)
Org. Lett.
, vol.16
, pp. 2658-2660
-
-
Reddy, K.1
Yamini, V.2
Singarapu, K.K.3
Gosh, S.4
-
10
-
-
84879172856
-
-
Lorente, A.; Lamariano-Merketegi, J.; Abericio, F.; Alvarez, M. Chem. Rev. 2013, 113, 4567-4610.
-
(2013)
Chem. Rev.
, vol.113
, pp. 4567-4610
-
-
Lorente, A.1
Lamariano-Merketegi, J.2
Abericio, F.3
Alvarez, M.4
-
11
-
-
65549100154
-
-
Zhu, H.; Wickenden, J. G.; Campbell, N. E.; Leung, J. C. T.; Johnson, K. M.; Sammis, G. M. Org. Lett. 2009, 11, 2019-2022.
-
(2009)
Org. Lett.
, vol.11
, pp. 2019-2022
-
-
Zhu, H.1
Wickenden, J.G.2
Campbell, N.E.3
Leung, J.C.T.4
Johnson, K.M.5
Sammis, G.M.6
-
12
-
-
57249084541
-
-
(a) Robertson, J.; Pillai, J.; Lush, R. K. Chem. Soc. Rev. 2001, 30, 94-103.
-
(2001)
Chem. Soc. Rev.
, vol.30
, pp. 94-103
-
-
Robertson, J.1
Pillai, J.2
Lush, R.K.3
-
13
-
-
0141570904
-
-
(b) Čeković, Ž. Tetrahedron 2003, 59, 8073-8090.
-
(2003)
Tetrahedron
, vol.59
, pp. 8073-8090
-
-
Čeković, Ž.1
-
18
-
-
76849105694
-
-
(b) Sperry, J.; Liu, Y.-C.; Brimble, M. A. Org. Biomol. Chem. 2010, 8, 29-38.
-
(2010)
Org. Biomol. Chem.
, vol.8
, pp. 29-38
-
-
Sperry, J.1
Liu, Y.-C.2
Brimble, M.A.3
-
19
-
-
0011430335
-
-
(a) Ramaiah, M. Tetrahedron 1987, 43, 3541-3676.
-
(1987)
Tetrahedron
, vol.43
, pp. 3541-3676
-
-
Ramaiah, M.1
-
20
-
-
0000315424
-
-
Trost, B. M., Fleming, I., Eds.; Pergamon Press: Oxford, Chapter 4.2
-
(b) Curran, D. P. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Pergamon Press: Oxford, 1991; Vol. 4, Chapter 4.2, pp 779-831.
-
(1991)
Comprehensive Organic Synthesis
, vol.4
, pp. 779-831
-
-
Curran, D.P.1
-
21
-
-
0000893313
-
-
Paquette, L., Ed.; John Wiley & Sons, Inc.: New York, Chapter 2
-
(c) Giese, B.; Kopping, B.; Gobel, T.; Dickhaut, J.; Thoma, G.; Kulicke, K. J.; Trach, F. In Organic Reactions; Paquette, L., Ed.; John Wiley & Sons, Inc.: New York, 1996; Vol. 48, Chapter 2, pp 303-856.
-
(1996)
Organic Reactions
, vol.48
, pp. 303-856
-
-
Giese, B.1
Kopping, B.2
Gobel, T.3
Dickhaut, J.4
Thoma, G.5
Kulicke, K.J.6
Trach, F.7
-
24
-
-
0000702878
-
-
(f) Jasperse, C. P.; Curran, D. P.; Fevig, T. L. Chem. Rev. 1991, 91, 1237-1286.
-
(1991)
Chem. Rev.
, vol.91
, pp. 1237-1286
-
-
Jasperse, C.P.1
Curran, D.P.2
Fevig, T.L.3
-
26
-
-
0001146788
-
-
(h) Parsons, P. J.; Penkett, C. S.; Shell, A. J. Chem. Rev. 1996, 96, 195-206.
-
(1996)
Chem. Rev.
, vol.96
, pp. 195-206
-
-
Parsons, P.J.1
Penkett, C.S.2
Shell, A.J.3
-
27
-
-
0000770422
-
-
(i) Wang, K. K. Chem. Rev. 1996, 96, 207-222.
-
(1996)
Chem. Rev.
, vol.96
, pp. 207-222
-
-
Wang, K.K.1
-
29
-
-
0035907919
-
-
(k) McCarroll, A. J.; Walton, J. C. Angew. Chem., Int. Ed. 2001, 40, 2224-2248.
-
(2001)
Angew. Chem., Int. Ed.
, vol.40
, pp. 2224-2248
-
-
McCarroll, A.J.1
Walton, J.C.2
-
32
-
-
0001185767
-
-
(b) Rawal, V. H.; Newton, R. C.; Krishnamurthy, V. J. Org. Chem. 1990, 55, 5181-5183.
-
(1990)
J. Org. Chem.
, vol.55
, pp. 5181-5183
-
-
Rawal, V.H.1
Newton, R.C.2
Krishnamurthy, V.3
-
34
-
-
0001112346
-
-
(b) Okada, K.; Okamoto, K.; Oda, M. J. Am. Chem. Soc. 1998, 110, 8736-8738.
-
(1998)
J. Am. Chem. Soc.
, vol.110
, pp. 8736-8738
-
-
Okada, K.1
Okamoto, K.2
Oda, M.3
-
35
-
-
0001282773
-
-
(c) Barton, D. H. R.; Blundell, P.; Jaszberenyl, J. C. Tetrahedron Lett. 1989, 30, 2341-2344.
-
(1989)
Tetrahedron Lett.
, vol.30
, pp. 2341-2344
-
-
Barton, D.H.R.1
Blundell, P.2
Jaszberenyl, J.C.3
-
37
-
-
0001279669
-
-
(a) Curran, D. P.; Kim, D.; Liu, H. T.; Shen, W. J. Am. Chem. Soc. 1988, 110, 5900-5902.
-
(1988)
J. Am. Chem. Soc.
, vol.110
, pp. 5900-5902
-
-
Curran, D.P.1
Kim, D.2
Liu, H.T.3
Shen, W.4
-
39
-
-
0001185733
-
-
(a) Viehe, H. G.; Merenyi, R.; Stella, L.; Janousek, Z. Angew. Chem., Int. Ed. Engl. 1979, 18, 917-932.
-
(1979)
Angew. Chem., Int. Ed. Engl.
, vol.18
, pp. 917-932
-
-
Viehe, H.G.1
Merenyi, R.2
Stella, L.3
Janousek, Z.4
-
45
-
-
0000799747
-
-
(b) Erickson, R. E.; Hansen, R. T.; Harkins, J. J. Am. Chem. Soc. 1968, 90, 6777-6783.
-
(1968)
J. Am. Chem. Soc.
, vol.90
, pp. 6777-6783
-
-
Erickson, R.E.1
Hansen, R.T.2
Harkins, J.3
-
48
-
-
31644450730
-
-
Mićović, B. M.; Stojčić, S.; Bralović, M.; Mladenović, S.; Jeremić, D.; Stefanović, M. Tetrahedron 1969, 25, 985-993.
-
(1969)
Tetrahedron
, vol.25
, pp. 985-993
-
-
Mićović, B.M.1
Stojčić, S.2
Bralović, M.3
Mladenović, S.4
Jeremić, D.5
Stefanović, M.6
-
49
-
-
0030200787
-
-
(a) Dorta, R. L.; Martín, A.; Prangé, T.; Suárez, E. Tetrahedron: Asymmetry 1996, 7, 1907-1910.
-
(1996)
Tetrahedron: Asymmetry
, vol.7
, pp. 1907-1910
-
-
Dorta, R.L.1
Martín, A.2
Prangé, T.3
Suárez, E.4
-
50
-
-
0001588618
-
-
(b) Martín, A.; Salazar, J. A.; Suárez, E. J. Org. Chem. 1996, 61, 3999-4006.
-
(1996)
J. Org. Chem.
, vol.61
, pp. 3999-4006
-
-
Martín, A.1
Salazar, J.A.2
Suárez, E.3
-
51
-
-
0030581410
-
-
(c) Dorta, R. L.; Martín, A.; Salazar, J. A.; Suárez, E.; Prangé, T. Tetrahedron Lett. 1996, 37, 6021-6024.
-
(1996)
Tetrahedron Lett.
, vol.37
, pp. 6021-6024
-
-
Dorta, R.L.1
Martín, A.2
Salazar, J.A.3
Suárez, E.4
Prangé, T.5
-
52
-
-
0032478575
-
-
(d) Dorta, R. L.; Martín, A.; Prangé, T.; Salazar, J. A.; Suárez, E. J. Org. Chem. 1998, 63, 2251-2261.
-
(1998)
J. Org. Chem.
, vol.63
, pp. 2251-2261
-
-
Dorta, R.L.1
Martín, A.2
Prangé, T.3
Salazar, J.A.4
Suárez, E.5
-
53
-
-
0038208388
-
-
(e) Boto, A.; Hernández, D.; Hernández, R.; Suárez, E. J. Org. Chem. 2003, 68, 5310-5319.
-
(2003)
J. Org. Chem.
, vol.68
, pp. 5310-5319
-
-
Boto, A.1
Hernández, D.2
Hernández, R.3
Suárez, E.4
-
54
-
-
34447625580
-
-
(f) Francisco, C. G.; Freire, R.; Herrera, A. J.; Suárez, E. Tetrahedron 2007, 63, 8910-8920.
-
(2007)
Tetrahedron
, vol.63
, pp. 8910-8920
-
-
Francisco, C.G.1
Freire, R.2
Herrera, A.J.3
Suárez, E.4
-
55
-
-
47049116768
-
-
(g) Martín, A.; Pérez-Martín, I.; Quintanal, L. M.; Suárez, E. Tetrahedron Lett. 2008, 49, 5179-5181.
-
(2008)
Tetrahedron Lett.
, vol.49
, pp. 5179-5181
-
-
Martín, A.1
Pérez-Martín, I.2
Quintanal, L.M.3
Suárez, E.4
-
56
-
-
0038317136
-
-
Renaud, P., Sibi, M. P., Eds.; Wiley-VCH: Toronto, Chapter 5.2
-
(a) Hartung, J. In Radicals in Organic Synthesis; Renaud, P., Sibi, M. P., Eds.; Wiley-VCH: Toronto, 2001; Vol. 2, Chapter 5.2, pp 427-439.
-
(2001)
Radicals in Organic Synthesis
, vol.2
, pp. 427-439
-
-
Hartung, J.1
-
59
-
-
37049067934
-
-
(b) Beckwith, A. L. J.; Hay, B. P.; Williams, G. M. J. Chem. Soc., Chem. Commun. 1989, 1202-1203.
-
(1989)
J. Chem. Soc., Chem. Commun.
, pp. 1202-1203
-
-
Beckwith, A.L.J.1
Hay, B.P.2
Williams, G.M.3
-
61
-
-
0000206311
-
-
Horner, J. H.; Choi, S.-Y.; Newcomb, M. Org. Lett. 2000, 2, 3369-3372.
-
(2000)
Org. Lett.
, vol.2
, pp. 3369-3372
-
-
Horner, J.H.1
Choi, S.-Y.2
Newcomb, M.3
-
62
-
-
80054091903
-
-
Rueda-Becerril, M.; Leung, J. C. T.; Dunbar, C. R.; Sammis, G. M. J. Org. Chem. 2011, 76, 7720-7729.
-
(2011)
J. Org. Chem.
, vol.76
, pp. 7720-7729
-
-
Rueda-Becerril, M.1
Leung, J.C.T.2
Dunbar, C.R.3
Sammis, G.M.4
-
65
-
-
84921288504
-
-
note
-
Procedures for the preparation of 19b and 19h can be found in ref 8.
-
-
-
-
69
-
-
84921269194
-
-
note
-
The corresponding boatlike transition states have not been depicted as they are significantly higher in energy than the two chairlike transition states depicted in Figure 5.
-
-
-
-
70
-
-
33947294719
-
-
(a) Brown, P.; Albert, A. H.; Pettit, G. R. J. Am. Chem. Soc. 1970, 92, 3212.
-
(1970)
J. Am. Chem. Soc.
, vol.92
, pp. 3212
-
-
Brown, P.1
Albert, A.H.2
Pettit, G.R.3
-
71
-
-
0008222682
-
-
(b) Albert, A. H.; Pettit, G. R.; Brown, P. J. Org. Chem. 1973, 38, 2197-2201.
-
(1973)
J. Org. Chem.
, vol.38
, pp. 2197-2201
-
-
Albert, A.H.1
Pettit, G.R.2
Brown, P.3
-
72
-
-
0001535093
-
-
Francisco, C. G.; Freire, R.; Hernández, R.; Medina, M. C.; Suárez, E. Tetrahedron Lett. 1983, 24, 4621-4624.
-
(1983)
Tetrahedron Lett.
, vol.24
, pp. 4621-4624
-
-
Francisco, C.G.1
Freire, R.2
Hernández, R.3
Medina, M.C.4
Suárez, E.5
-
73
-
-
84921260546
-
-
note
-
The linear-quenched product accounts for some of the remaining mass balance. This is commonly observed in these relay cyclizations (ref 8). However, no THP ring formation was observed by 1H NMR spectroscopy.
-
-
-
-
74
-
-
84921296703
-
-
note
-
Previous EI mass spec studies involving alkoxy radical 1,6-HAT in steroidal derivatives did not indicate that any product resulted from a 1,5-HAT (see ref 32). A subsequent study by Suárez and co-workers indicated that the observed 1,6-HAT did not proceed stepwise through a 1,5-HAT functionalized intermediate (see ref 33).
-
-
-
-
75
-
-
0004035157
-
-
Abramovitch, R. A., Ed.; Plenum: New York
-
(a) Burn, P.; Waegell, B. Reactive Intermediates; Abramovitch, R. A., Ed.; Plenum: New York, 1983; Vol. 3, pp 367-426.
-
(1983)
Reactive Intermediates
, vol.3
, pp. 367-426
-
-
Burn, P.1
Waegell, B.2
-
76
-
-
0000213430
-
-
Renaud, P., Sibi, M. P., Eds.; Wiley-VCH: Weinheim
-
(b) Suárez, E.; Rodriguez, M. S. Radicals in Organic Synthesis; Renaud, P., Sibi, M. P., Eds.; Wiley-VCH: Weinheim, 2001; Vol. 2, pp 440-454.
-
(2001)
Radicals in Organic Synthesis
, vol.2
, pp. 440-454
-
-
Suárez, E.1
Rodriguez, M.S.2
-
77
-
-
84921267195
-
-
note
-
To simplify analysis, competition substrate 61 was utilized instead of a substitution pattern analogous to that presented in Figure 7 (53). See the Supporting Information for details.
-
-
-
-
79
-
-
84921279728
-
-
note
-
The relative configuration of the stereoisomers was not determined.
-
-
-
-
80
-
-
84921291947
-
-
note
-
Further reductions in temperature were attempted using triethylborane and oxygen. However, these conditions were not effective initiating the relay cyclization.
-
-
-
-
81
-
-
84921300734
-
-
note
-
It is likely that the minor diastereomer was removed during purification.
-
-
-
-
82
-
-
0037077074
-
-
Suh, Y.-G.; Jung, J.-K.; Seo, S.-Y.; Min, K.-H.; Shin, D.-Y.; Lee, Y.-S.; Kim, S.-H.; Park, H.-J. J. Org. Chem. 2002, 67, 4127-4137.
-
(2002)
J. Org. Chem.
, vol.67
, pp. 4127-4137
-
-
Suh, Y.-G.1
Jung, J.-K.2
Seo, S.-Y.3
Min, K.-H.4
Shin, D.-Y.5
Lee, Y.-S.6
Kim, S.-H.7
Park, H.-J.8
-
83
-
-
75749101789
-
-
Tummatorn, J.; Ruchirawat, S.; Ploypradith, P. Chem. - Eur. J. 2010, 16, 1445-1448.
-
(2010)
Chem. - Eur. J.
, vol.16
, pp. 1445-1448
-
-
Tummatorn, J.1
Ruchirawat, S.2
Ploypradith, P.3
-
84
-
-
0000357208
-
-
Okachi, T.; Fujimoto, K.; Onaka, M. Org. Lett. 2002, 4, 1667-1669.
-
(2002)
Org. Lett.
, vol.4
, pp. 1667-1669
-
-
Okachi, T.1
Fujimoto, K.2
Onaka, M.3
-
85
-
-
75749096737
-
-
Wu, Y.; Yao, W.; Pan, L.; Zhang, Y.; Ma, C. Org. Lett. 2010, 12, 640-643.
-
(2010)
Org. Lett.
, Issue.12
, pp. 640-643
-
-
Wu, Y.1
Yao, W.2
Pan, L.3
Zhang, Y.4
Ma, C.5
-
88
-
-
33751554479
-
-
Roush, W. R.; Hoong, L. K.; Palmer, M. A. J.; Straub, J. A.; Palkowitz, A. D. J. Org. Chem. 1990, 55, 4117-4126.
-
(1990)
J. Org. Chem.
, vol.55
, pp. 4117-4126
-
-
Roush, W.R.1
Hoong, L.K.2
Palmer, M.A.J.3
Straub, J.A.4
Palkowitz, A.D.5
-
89
-
-
77956214091
-
-
Franck, G.; Brödner, K.; Helmchen, G. Org. Lett. 2010, 12, 3886-3889.
-
(2010)
Org. Lett.
, vol.12
, pp. 3886-3889
-
-
Franck, G.1
Brödner, K.2
Helmchen, G.3
-
91
-
-
67649476252
-
-
Lankalapalli, R. S.; Eckelkamp, J. T.; Sircar, D.; Ford, D. A.; Subbaiah, P. V.; Bittman, R. Org. Lett. 2009, 11, 2784-2787.
-
(2009)
Org. Lett.
, vol.11
, pp. 2784-2787
-
-
Lankalapalli, R.S.1
Eckelkamp, J.T.2
Sircar, D.3
Ford, D.A.4
Subbaiah, P.V.5
Bittman, R.6
-
92
-
-
2442551640
-
-
van Swieten, P. F.; Maehr, R.; van den Nieuwendijk, A. M. C. H.; Kessler, B. M.; Reich, M.; Wong, C.-S.; Kalbacher, H.; Leeuwenburg, M. A.; Driessen, C.; van der Marel, G. A.; Ploegh, H. L.; Overkleeft, H. S. Bioorg. Med. Chem. Lett. 2004, 14, 3131-3134.
-
(2004)
Bioorg. Med. Chem. Lett.
, vol.14
, pp. 3131-3134
-
-
Van Swieten, P.F.1
Maehr, R.2
Van Den Nieuwendijk, A.M.C.H.3
Kessler, B.M.4
Reich, M.5
Wong, C.-S.6
Kalbacher, H.7
Leeuwenburg, M.A.8
Driessen, C.9
Van Der Marel, G.A.10
Ploegh, H.L.11
Overkleeft, H.S.12
|