-
4
-
-
18744369601
-
-
For intermolecular insertion of an alkyne into a carbon-carbon bond of a cyclobutanone
-
For intermolecular insertion of an alkyne into a carbon-carbon bond of a cyclobutanone, see: M. Murakami, S. Ashida, T. Matsuda, J. Am. Chem. Soc. 2005, 127, 6932-6933.
-
(2005)
J. Am. Chem. Soc.
, vol.127
, pp. 6932-6933
-
-
Murakami, M.1
Ashida, S.2
Matsuda, T.3
-
5
-
-
33750620360
-
-
For intramolecular insertion of an olefin into a carbon-carbon bond of a cyclobutanone
-
For intramolecular insertion of an olefin into a carbon-carbon bond of a cyclobutanone, see: M. Murakami, S. Ashida, Chem. Commun. 2006, 4599-4601.
-
(2006)
Chem. Commun.
, pp. 4599-4601
-
-
Murakami, M.1
Ashida, S.2
-
6
-
-
18244427166
-
-
a) T. Kondo, K. Kodoi, E. Nishinaga, T. Okada, Y. Morisaki, Y. Watanabe, T.-a. Mitsudo, J. Am. Chem. Soc. 1998, 120, 5587-5588;
-
(1998)
J. Am. Chem. Soc.
, vol.120
, pp. 5587-5588
-
-
Kondo, T.1
Kodoi, K.2
Nishinaga, E.3
Okada, T.4
Morisaki, Y.5
Watanabe, Y.6
Mitsudo, T.-A.7
-
7
-
-
33644519289
-
-
b) S. Hayashi, K. Hirano, H. Yorimitsu, K. Oshima, J. Am. Chem. Soc. 2006, 128, 2210-2211.
-
(2006)
J. Am. Chem. Soc.
, vol.128
, pp. 2210-2211
-
-
Hayashi, S.1
Hirano, K.2
Yorimitsu, H.3
Oshima, K.4
-
8
-
-
0038548106
-
-
Y. Terao, H. Wakui, M. Nomoto, T. Satoh, M. Miura, M. Nomura, J. Org. Chem. 2003, 68, 5236-5243.
-
(2003)
J. Org. Chem.
, vol.68
, pp. 5236-5243
-
-
Terao, Y.1
Wakui, H.2
Nomoto, M.3
Satoh, T.4
Miura, M.5
Nomura, M.6
-
9
-
-
0000785058
-
-
a) A. Fürstner, Angew. Chem. 2000, 112, 3140-3172;
-
(2000)
, vol.112
, pp. 3140-3172
-
-
Fürstner, A.1
Chem, A.2
-
10
-
-
0001399412
-
-
Angew. Chem. Int. Ed. 2000, 39, 3012-3043;
-
(2000)
Angew. Chem. Int. Ed.
, vol.39
, pp. 3012-3043
-
-
-
12
-
-
33748356066
-
-
Y. Kuninobu, A. Kawata, K. Takai, J. Am. Chem. Soc. 2006, 128, 11368-11369.
-
(2006)
J. Am. Chem. Soc.
, vol.128
, pp. 11368-11369
-
-
Kuninobu, Y.1
Kawata, A.2
Takai, K.3
-
13
-
-
52049084408
-
-
Y. Kuninobu, H. Takata, A. Kawata, K. Takai, Org. Lett. 2008, 10, 3133-3135.
-
(2008)
Org. Lett.
, vol.10
, pp. 3133-3135
-
-
Kuninobu, Y.1
Takata, H.2
Kawata, A.3
Takai, K.4
-
14
-
-
69649099545
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-
The role of the 4Å-MS is not clear
-
The role of the 4Å-MS is not clear.
-
-
-
-
15
-
-
69649088500
-
-
In the case of using 4-Å molecular sieves as an additive instead of benzyl isocyanide, the yield of 3 k was decreased because two olefinic isomers of 3 k were formed.
-
In the case of using 4-Å molecular sieves as an additive instead of benzyl isocyanide, the yield of 3 k was decreased because two olefinic isomers of 3 k were formed.
-
-
-
-
16
-
-
27644479913
-
-
Y. Kuninobu, A. Kawata, K. Takai, Org. Lett. 2005, 7, 4823-4825.
-
(2005)
Org. Lett.
, vol.7
, pp. 4823-4825
-
-
Kuninobu, Y.1
Kawata, A.2
Takai, K.3
-
17
-
-
69649091009
-
-
The structure of 4a is as follows: (equation presented)
-
The structure of 4a is as follows: (equation presented)
-
-
-
-
18
-
-
69649102587
-
-
One possible reason that cyclopentanone-2-carboxylic acid ethyl ester did not produce a ring-expansion product is that the retroaldol reaction (carbon-carbon bond cleavage) of a metalacyclopentene or cyclobutene intermediate might be difficult.
-
One possible reason that cyclopentanone-2-carboxylic acid ethyl ester did not produce a ring-expansion product is that the retroaldol reaction (carbon-carbon bond cleavage) of a metalacyclopentene or cyclobutene intermediate might be difficult.
-
-
-
-
19
-
-
0010535204
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-
The promotion effect of isocyanide has also been reported
-
The promotion effect of isocyanide has also been reported by M. Suginome and Y. Ito. See: M. Suginome, Y. Ito, Top. Organomet Chem. 1999, 3, 131-159.
-
(1999)
Top. Organomet Chem.
, vol.3
, pp. 131-159
-
-
Suginome, M.1
Ito, Y.2
Suginome, M.3
Ito, Y.4
-
21
-
-
69649104518
-
-
The ô-keto esters 6a-8a could not be separated by column chromatography on silica gel.
-
The ô-keto esters 6a-8a could not be separated by column chromatography on silica gel.
-
-
-
-
22
-
-
57249105005
-
-
Y. Kuninobu, A. Kawata, M. Nishi, H. Takata, K. Takai, Chem. Commun. 2008, 6360-6362.
-
(2008)
Chem. Commun.
, pp. 6360-6362
-
-
Kuninobu, Y.1
Kawata, A.2
Nishi, M.3
Takata, H.4
Takai, K.5
-
23
-
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69649086776
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-
In this reaction, methylenecyclohexane 13 was formed. See Ref.
-
In this reaction, methylenecyclohexane 13 was formed. See Ref.
-
-
-
-
24
-
-
0142183454
-
-
See also: a) M. Nakamura, K. Endo, E. Nakamura, J. Am. Chem. Soc. 2003, 125, 13002-13003;
-
(2003)
J. Am. Chem. Soc.
, vol.125
, pp. 13002-13003
-
-
Nakamura, M.1
Endo, K.2
Nakamura, E.3
-
25
-
-
1842637760
-
-
b) J. J. Kennedy-Smith, S. T. Staben, F. D. Toste, J. Am. Chem. Soc. 2004, 126, 4526-4527;
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 4526-4527
-
-
Kennedy-Smith, J.J.1
Staben, S.T.2
Toste, F.D.3
-
26
-
-
14244265392
-
-
c) S. T. Staben, J. J. Kennedy-Smith, F. D. Toste, Angew. Chem. 2004, 116, 5464-5466;
-
(2004)
, vol.116
, pp. 5464-5466
-
-
Staben, S.T.1
Kennedy-Smith, J.J.2
Toste, F.D.3
Chem, A.4
-
27
-
-
7244248645
-
-
Angew. Chem. Int. Ed. 2004, 43, 5350-5352;
-
(2004)
Angew. Chem. Int. Ed.
, vol.43
, pp. 5350-5352
-
-
-
28
-
-
20444465253
-
-
d) Q. Gao, B.-F. Zheng, J.-H. Li, D. Yang, Org. Lett. 2005, 7, 2185-2188.
-
(2005)
Org. Lett.
, vol.7
, pp. 2185-2188
-
-
Gao, Q.1
Zheng, B.-F.2
Li, J.-H.3
Yang, D.4
-
29
-
-
69649104390
-
-
Only a cyclopentane derivative was formed in 93% yield by using methyl 2-acetylhept-6-ynoate.
-
Only a cyclopentane derivative was formed in 93% yield by using methyl 2-acetylhept-6-ynoate.
-
-
-
-
30
-
-
67650292386
-
-
S. Yudha S. , Y. Kuninobu, K. Takai, Angew. Chem. 2008, 120, 9458-9461;
-
(2008)
Angew. Chem.
, vol.120
, pp. 9458-9461
-
-
Yudha S, S.1
Kuninobu, Y.2
Takai, K.3
-
31
-
-
56449124073
-
-
Angew. Chem. Int. Ed. 2008, 47, 9318-9321.
-
(2008)
Angew. Chem. Int. Ed.
, vol.47
, pp. 9318-9321
-
-
-
33
-
-
34948882219
-
-
For rhenium-catalyzed formation of cyclobutene derivatives by reductive elimination from rhenacyclopentene intermediates
-
For rhenium-catalyzed formation of cyclobutene derivatives by reductive elimination from rhenacyclopentene intermediates, see: Y. Kuninobu, P. Yu, K. Takai, Chem. Lett. 2007, 36, 1162-1163.
-
(2007)
Chem. Lett.
, vol.36
, pp. 1162-1163
-
-
Kuninobu, Y.1
Yu, P.2
Takai, K.3
-
34
-
-
58249141118
-
-
A. Kawata, K. Takata, Y. Kuninobu, K. Takai, Angew. Chem. 2007, 119, 7939-7941;
-
(2007)
Angew. Chem.
, vol.119
, pp. 7939-7941
-
-
Kawata, A.1
Takata, K.2
Kuninobu, Y.3
Takai, K.4
-
35
-
-
35349007000
-
-
Angew. Chem. Int. Ed. 2007, 46, 7793-7795.
-
(2007)
Angew. Chem. Int. Ed.
, vol.46
, pp. 7793-7795
-
-
-
36
-
-
69649084715
-
-
In the case of Ref. [12], deuterium-labeling experiments indicate that a rhenium atom of an alkenyl-rhenium intermediate is located at the near side of 1,3-dicarbonyl compounds. Therefore, we thought that the intermediate in Scheme 1 must be similar to that of the intermediate reported in Ref. [12].
-
In the case of Ref. [12], deuterium-labeling experiments indicate that a rhenium atom of an alkenyl-rhenium intermediate is located at the near side of 1,3-dicarbonyl compounds. Therefore, we thought that the intermediate in Scheme 1 must be similar to that of the intermediate reported in Ref. [12].
-
-
-
-
37
-
-
0032510404
-
-
C.-J. Li, D.-L. Chen, Y.-Q. Lu, J. X. Haberman, J. T. Mague, Tetrahedron 1998, 54, 2347-2364.
-
(1998)
Tetrahedron
, vol.54
, pp. 2347-2364
-
-
Li, C.-J.1
Chen, D.-L.2
Lu, Y.-Q.3
Haberman, J.X.4
Mague, J.T.5
-
38
-
-
0001560416
-
-
P. Cruciani, R. Stammler, C. Aubert, M. Malacria, J. Org. Chem. 1996, 61, 2699-2708.
-
(1996)
J. Org. Chem.
, vol.61
, pp. 2699-2708
-
-
Cruciani, P.1
Stammler, R.2
Aubert, C.3
Malacria, M.4
-
39
-
-
58149203500
-
-
M. Yoshida, K. Matsuda, Y. Shoji, T. Gotou, M. Ihara, K. Shishido, Org. Lett. 2008, 10, 5183-5186.
-
(2008)
Org. Lett.
, vol.10
, pp. 5183-5186
-
-
Yoshida, M.1
Matsuda, K.2
Shoji, Y.3
Gotou, T.4
Ihara, M.5
Shishido, K.6
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