-
2
-
-
0000869393
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-
Negishi E., Akiyoshi K., O'Connor B., Takagi K., and Wu G. J. Am. Chem. Soc. 111 (1989) 3089-3091
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(1989)
J. Am. Chem. Soc.
, vol.111
, pp. 3089-3091
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-
Negishi, E.1
Akiyoshi, K.2
O'Connor, B.3
Takagi, K.4
Wu, G.5
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10
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-
0004258370
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-
Rappoport Z. (Ed), Wiley, New York parts 1 and 2, and 1995, part 3
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In: Rappoport Z. (Ed). The Chemistry of the Cyclopropyl Group (1987), Wiley, New York parts 1 and 2, and 1995, part 3
-
(1987)
The Chemistry of the Cyclopropyl Group
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-
-
16
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-
0003245764
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-
Stereochemistries of 12 and 14 were assigned by comparison of NMR spectra with known compounds.
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Stereochemistries of 12 and 14 were assigned by comparison of NMR spectra with known compounds. Schaumann E., Kirschning A., and Narjes F. J. Org. Chem. 56 (1991) 717-723
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(1991)
J. Org. Chem.
, vol.56
, pp. 717-723
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-
Schaumann, E.1
Kirschning, A.2
Narjes, F.3
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18
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-
33751178116
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-
See Ref. 6b.
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-
-
-
19
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-
33751161589
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-
note
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* method using Spartan04 for windows (Wavefunction Ltd.).
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-
-
-
21
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-
33751184824
-
-
note
-
It is possible that addition occurs by the concerted insertion of the carbenoid into the carbon-zirconium bond with loss of LiBr rather than via an 'ate' complex. Calculations on the structure of the carbenoid show that both the HOMO and LUMO have their major components on the same side as the lithium hence the stereochemical result will be the same as the pathway via an 'ate' complex and would thus have to be taking place via the epimer of 4.
-
-
-
-
22
-
-
33751187475
-
-
note
-
We have not proved the relative stereochemistry between the CH(hexyl)CH(OH)Ph fragment and the cyclohexyl-cyclopropane ring fusion, which can also be viewed as the alkene stereochemistry, but diastereoisomer 37 would only be accessible by the attack of the electrophile anti- to the zirconium, which is unlikely both because the cyclohexyl ring provides an effective steric block, and because it would then be very difficult to account for the syn stereochemistry observed.{A figure is presented}.
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-
-
-
23
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-
0034861316
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-
For example, ozonolysis of alkylidene cyclopropanes is known to be complex and not involve simple cleavage of the double bond:
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For example, ozonolysis of alkylidene cyclopropanes is known to be complex and not involve simple cleavage of the double bond:. Langler R.F., Raheja R.K., Schank K., and Beck H. Helv. Chim. Acta 84 (2001) 1943-1951
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(2001)
Helv. Chim. Acta
, vol.84
, pp. 1943-1951
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-
Langler, R.F.1
Raheja, R.K.2
Schank, K.3
Beck, H.4
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25
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0000010270
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-
The structures of 24-26a and b came from analysis of NMR data and comparisons with similar literature compounds.
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The structures of 24-26a and b came from analysis of NMR data and comparisons with similar literature compounds. Beruben D., Marek I., Normant J.F., and Platzer N. J. Org. Chem. 60 (1995) 2488-2501
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(1995)
J. Org. Chem.
, vol.60
, pp. 2488-2501
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-
Beruben, D.1
Marek, I.2
Normant, J.F.3
Platzer, N.4
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29
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-
0000104069
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-
21 of the methyl and alkene carbons adjacent to the cyclopropyl ring made the relative stereochemistries unambiguous
-
21 of the methyl and alkene carbons adjacent to the cyclopropyl ring made the relative stereochemistries unambiguous
-
(1996)
J. Org. Chem.
, vol.61
, pp. 8792-8798
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-
Theberge, C.R.1
Verbicky, C.A.2
Zercher, C.K.3
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30
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-
33751164104
-
-
note
-
The yield of 28d was consistently very low. The reasonable yield of 28c suggests some activating effect of the phenyl substituent. The low yield of 28e was largely due to the unavoidable bis-insertion of the carbenoid.
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-
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35
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17444380855
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Trost B.M., Shen H.C., Horne D.B., Toste F.D., Steinmetz B.G., and Koradin C. Chem. Eur. J. 11 (2005) 2577-2590
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(2005)
Chem. Eur. J.
, vol.11
, pp. 2577-2590
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-
Trost, B.M.1
Shen, H.C.2
Horne, D.B.3
Toste, F.D.4
Steinmetz, B.G.5
Koradin, C.6
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44
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0142062481
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Patient L., Berry M.B., Coles S.J., Hursthouse M.B., and Kilburn J.D. Chem. Commun. (2003) 2552-2553
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(2003)
Chem. Commun.
, pp. 2552-2553
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-
Patient, L.1
Berry, M.B.2
Coles, S.J.3
Hursthouse, M.B.4
Kilburn, J.D.5
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