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1
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0030710575
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S. Hikichi, G. P-J. Hareau, F. Sato, Tetrahedron Lett. 1997, 38, 8299-8302.
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Tetrahedron Lett.
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Hikichi, S.1
Hareau, G.P.-J.2
Sato, F.3
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2
-
-
0000395184
-
-
For other chiral 2,5-cyclohexadienone synthons, see a) M. Asaoka, K. Shima, H. Takei, Tetrahedron Lett. 1987, 28, 5669-5672; M. Asaoka, H. Takei, J. Synth. Org. Chem. Jpn 1990, 48, 216-228; b) S. Takano, Y. Higashi, T. Kamikubo, M. Moriya, K. Ogasawara, Synthesis 1993, 948-950; K. Ogasawara, Pure Appl. Chem. 1994, 66, 2119-2122.
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(1987)
Tetrahedron Lett.
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Asaoka, M.1
Shima, K.2
Takei, H.3
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3
-
-
85007749559
-
-
For other chiral 2,5-cyclohexadienone synthons, see a) M. Asaoka, K. Shima, H. Takei, Tetrahedron Lett. 1987, 28, 5669-5672; M. Asaoka, H. Takei, J. Synth. Org. Chem. Jpn 1990, 48, 216-228; b) S. Takano, Y. Higashi, T. Kamikubo, M. Moriya, K. Ogasawara, Synthesis 1993, 948-950; K. Ogasawara, Pure Appl. Chem. 1994, 66, 2119-2122.
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(1990)
J. Synth. Org. Chem. Jpn
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Asaoka, M.1
Takei, H.2
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4
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0027436961
-
-
For other chiral 2,5-cyclohexadienone synthons, see a) M. Asaoka, K. Shima, H. Takei, Tetrahedron Lett. 1987, 28, 5669-5672; M. Asaoka, H. Takei, J. Synth. Org. Chem. Jpn 1990, 48, 216-228; b) S. Takano, Y. Higashi, T. Kamikubo, M. Moriya, K. Ogasawara, Synthesis 1993, 948-950; K. Ogasawara, Pure Appl. Chem. 1994, 66, 2119-2122.
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(1993)
Synthesis
, pp. 948-950
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Takano, S.1
Higashi, Y.2
Kamikubo, T.3
Moriya, M.4
Ogasawara, K.5
-
5
-
-
0001611899
-
-
For other chiral 2,5-cyclohexadienone synthons, see a) M. Asaoka, K. Shima, H. Takei, Tetrahedron Lett. 1987, 28, 5669-5672; M. Asaoka, H. Takei, J. Synth. Org. Chem. Jpn 1990, 48, 216-228; b) S. Takano, Y. Higashi, T. Kamikubo, M. Moriya, K. Ogasawara, Synthesis 1993, 948-950; K. Ogasawara, Pure Appl. Chem. 1994, 66, 2119-2122.
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Pure Appl. Chem.
, vol.66
, pp. 2119-2122
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-
Ogasawara, K.1
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6
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-
37049142053
-
-
Lower order lithium cyanocuprates ([RCuCNLi]): a) J. P. Gorlier, L. Hamon, J. Levisalles, J. Chem. Soc. Chem. Commun. 1973, 88; b) R.-D. Acker, Tetrahedron Lett. 1977, 3407-3410; c) L. Hamon, J. Levisalles, J. Organomet. Chem. 1983, 251, 133-138.
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J. Chem. Soc. Chem. Commun.
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Gorlier, J.P.1
Hamon, L.2
Levisalles, J.3
-
7
-
-
15144355956
-
-
Lower order lithium cyanocuprates ([RCuCNLi]): a) J. P. Gorlier, L. Hamon, J. Levisalles, J. Chem. Soc. Chem. Commun. 1973, 88; b) R.-D. Acker, Tetrahedron Lett. 1977, 3407-3410; c) L. Hamon, J. Levisalles, J. Organomet. Chem. 1983, 251, 133-138.
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(1977)
Tetrahedron Lett.
, pp. 3407-3410
-
-
Acker, R.-D.1
-
8
-
-
0344467989
-
-
Lower order lithium cyanocuprates ([RCuCNLi]): a) J. P. Gorlier, L. Hamon, J. Levisalles, J. Chem. Soc. Chem. Commun. 1973, 88; b) R.-D. Acker, Tetrahedron Lett. 1977, 3407-3410; c) L. Hamon, J. Levisalles, J. Organomet. Chem. 1983, 251, 133-138.
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J. Organomet. Chem.
, vol.251
, pp. 133-138
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-
Hamon, L.1
Levisalles, J.2
-
9
-
-
0000175698
-
-
The conjugate addition of organocuprates to 5-substiluted-2-cyclohexenones yields generally a very high proportion of trans-adduct; see the following reviews and references therein: Y. Yamamoto, Methods Org. Chem. (Houben-Weyl) 4th ed., Vol. E21b, 1995, pp. 2041-2067; B. H. Lipshutz, Comprehensive Organic Synthesis, Vol. 1 (Eds.: B. M. Trost, I. Fleming, S. L. Schreiber), Pergamon, Oxford, 1991, pp. 107-138; J. A. Kozlowski, Comprehensive Organic Synthesis, Vol. 4 (Eds.: B. M. Trost, I. Fleming, M. F. Semmelhock), Pergamon, Oxford, 1991, pp. 169-198.
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(1995)
Methods Org. Chem. (Houben-Weyl) 4th Ed.
, vol.E21B
, pp. 2041-2067
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Yamamoto, Y.1
-
10
-
-
0001189279
-
-
Eds.: B. M. Trost, I. Fleming, S. L. Schreiber, Pergamon, Oxford
-
The conjugate addition of organocuprates to 5-substiluted-2-cyclohexenones yields generally a very high proportion of trans-adduct; see the following reviews and references therein: Y. Yamamoto, Methods Org. Chem. (Houben-Weyl) 4th ed., Vol. E21b, 1995, pp. 2041-2067; B. H. Lipshutz, Comprehensive Organic Synthesis, Vol. 1 (Eds.: B. M. Trost, I. Fleming, S. L. Schreiber), Pergamon, Oxford, 1991, pp. 107-138; J. A. Kozlowski, Comprehensive Organic Synthesis, Vol. 4 (Eds.: B. M. Trost, I. Fleming, M. F. Semmelhock), Pergamon, Oxford, 1991, pp. 169-198.
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(1991)
Comprehensive Organic Synthesis
, vol.1
, pp. 107-138
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Lipshutz, B.H.1
-
11
-
-
0000696943
-
-
Eds.: B. M. Trost, I. Fleming, M. F. Semmelhock, Pergamon, Oxford
-
The conjugate addition of organocuprates to 5-substiluted-2-cyclohexenones yields generally a very high proportion of trans-adduct; see the following reviews and references therein: Y. Yamamoto, Methods Org. Chem. (Houben-Weyl) 4th ed., Vol. E21b, 1995, pp. 2041-2067; B. H. Lipshutz, Comprehensive Organic Synthesis, Vol. 1 (Eds.: B. M. Trost, I. Fleming, S. L. Schreiber), Pergamon, Oxford, 1991, pp. 107-138; J. A. Kozlowski, Comprehensive Organic Synthesis, Vol. 4 (Eds.: B. M. Trost, I. Fleming, M. F. Semmelhock), Pergamon, Oxford, 1991, pp. 169-198.
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(1991)
Comprehensive Organic Synthesis
, vol.4
, pp. 169-198
-
-
Kozlowski, J.A.1
-
13
-
-
0344036843
-
-
note
-
2] indicate that the reagents have been prepared stoichiometrically by mixing CuCN and RLi in a ratio of 1:1 and 1:2, respectively.
-
-
-
-
14
-
-
0344899751
-
-
The chemical shift of CH-OTBS appears at around δ = 3.8 for cis-2 and δ = 4.4 for trans-2
-
The chemical shift of CH-OTBS appears at around δ = 3.8 for cis-2 and δ = 4.4 for trans-2.
-
-
-
-
15
-
-
0025738119
-
-
L. Dumortier, J. Carda, J. Van der Eyken, G Snatzke, Tetrahedron: Asymmetry 1991, 2, 789-792; M. Suemune, M. Takahashi, S. Maeda, Z.-F. Xie, K. Sakai, Tetrahedron: Asymmetry 1990, 1, 425-428.
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Tetrahedron: Asymmetry
, vol.2
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Dumortier, L.1
Carda, J.2
Van Der Eyken, J.3
Snatzke, G.4
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16
-
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0025080264
-
-
L. Dumortier, J. Carda, J. Van der Eyken, G Snatzke, Tetrahedron: Asymmetry 1991, 2, 789-792; M. Suemune, M. Takahashi, S. Maeda, Z.-F. Xie, K. Sakai, Tetrahedron: Asymmetry 1990, 1, 425-428.
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(1990)
Tetrahedron: Asymmetry
, vol.1
, pp. 425-428
-
-
Suemune, M.1
Takahashi, M.2
Maeda, S.3
Xie, Z.-F.4
Sakai, K.5
-
18
-
-
6244279150
-
-
A selectivity of 92:8 in favor of the cis isomer has been reported on a 4-oxv-substituted spirocyclohexenone: E. J. Corey, N. W. Boaz, Tetrahedron Lett. 1985, 26, 6015-6018. cis-Michael-type addition has been observed on 4-oxy-substituted-2-cyclohexenone: L. O. Jeroncic, M. P. Cabal, S. J. Danishefsky, J. Org. Chem. 1991, 56, 387-395.
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(1985)
Tetrahedron Lett.
, vol.26
, pp. 6015-6018
-
-
Corey, E.J.1
Boaz, N.W.2
-
19
-
-
0001280326
-
-
A selectivity of 92:8 in favor of the cis isomer has been reported on a 4-oxv-substituted spirocyclohexenone: E. J. Corey, N. W. Boaz, Tetrahedron Lett. 1985, 26, 6015-6018. cis-Michael-type addition has been observed on 4-oxy-substituted-2-cyclohexenone: L. O. Jeroncic, M. P. Cabal, S. J. Danishefsky, J. Org. Chem. 1991, 56, 387-395.
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(1991)
J. Org. Chem.
, vol.56
, pp. 387-395
-
-
Jeroncic, L.O.1
Cabal, M.P.2
Danishefsky, S.J.3
-
20
-
-
0001604450
-
-
E. J. Corey, F. J. Hannon, N. W. Boaz, Tetrahedron 1989, 45, 545-555; E. J. Corey, F. J. Hannon, Tetrahedron Lett. 1990, 31, 1393-1396.
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(1989)
Tetrahedron
, vol.45
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-
Corey, E.J.1
Hannon, F.J.2
Boaz, N.W.3
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21
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0025257549
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E. J. Corey, F. J. Hannon, N. W. Boaz, Tetrahedron 1989, 45, 545-555; E. J. Corey, F. J. Hannon, Tetrahedron Lett. 1990, 31, 1393-1396.
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(1990)
Tetrahedron Lett.
, vol.31
, pp. 1393-1396
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Corey, E.J.1
Hannon, F.J.2
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22
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0000456878
-
-
For some recent progress on the mechanism of the 1,4-addition of cuprates to enones, see N. Krauze, J. Org. Chem. 1992, 57, 3509-3512; A. S. Vellekoop, R. A. J. Smith, J. Am. Chem. Soc. 1994, 116, 2902-2913; J. P. Snyder, J. Am. Chem. Soc. 1995, 117, 11025-11026; K. Nilsson, C. Ullenius, N. Krause, J. Am. Chem. Soc. 1996, 118, 4194-4195, and references therein.
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(1992)
J. Org. Chem.
, vol.57
, pp. 3509-3512
-
-
Krauze, N.1
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23
-
-
0000996710
-
-
For some recent progress on the mechanism of the 1,4-addition of cuprates to enones, see N. Krauze, J. Org. Chem. 1992, 57, 3509-3512; A. S. Vellekoop, R. A. J. Smith, J. Am. Chem. Soc. 1994, 116, 2902-2913; J. P. Snyder, J. Am. Chem. Soc. 1995, 117, 11025-11026; K. Nilsson, C. Ullenius, N. Krause, J. Am. Chem. Soc. 1996, 118, 4194-4195, and references therein.
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(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 2902-2913
-
-
Vellekoop, A.S.1
Smith, R.A.J.2
-
24
-
-
0000647642
-
-
For some recent progress on the mechanism of the 1,4-addition of cuprates to enones, see N. Krauze, J. Org. Chem. 1992, 57, 3509-3512; A. S. Vellekoop, R. A. J. Smith, J. Am. Chem. Soc. 1994, 116, 2902-2913; J. P. Snyder, J. Am. Chem. Soc. 1995, 117, 11025-11026; K. Nilsson, C. Ullenius, N. Krause, J. Am. Chem. Soc. 1996, 118, 4194-4195, and references therein.
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J. Am. Chem. Soc.
, vol.117
, pp. 11025-11026
-
-
Snyder, J.P.1
-
25
-
-
0029901510
-
-
and references therein
-
For some recent progress on the mechanism of the 1,4-addition of cuprates to enones, see N. Krauze, J. Org. Chem. 1992, 57, 3509-3512; A. S. Vellekoop, R. A. J. Smith, J. Am. Chem. Soc. 1994, 116, 2902-2913; J. P. Snyder, J. Am. Chem. Soc. 1995, 117, 11025-11026; K. Nilsson, C. Ullenius, N. Krause, J. Am. Chem. Soc. 1996, 118, 4194-4195, and references therein.
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J. Am. Chem. Soc.
, vol.118
, pp. 4194-4195
-
-
Nilsson, K.1
Ullenius, C.2
Krause, N.3
-
26
-
-
0030854055
-
-
and references therein
-
For the synthesis of optically active 5-substituted cyclohexenones, see J. B. Schwarz, P. N. Devine, A. I. Meyers, Tetrahedron 1997, 53, 8795-8806, and references therein.
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(1997)
Tetrahedron
, vol.53
, pp. 8795-8806
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Schwarz, J.B.1
Devine, P.N.2
Meyers, A.I.3
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27
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0344036838
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-
CuCN was purchased from Koso Chemical Co., Ltd. Tokyo, Japan, and was used without further purification. Angew. Chem. Int. Ed. 1998. 37. No. 15
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(1998)
Angew. Chem. Int. Ed.
, vol.37
, Issue.15
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