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Kopp, F.5
Korn, T.6
Sapountzis, I.7
Vu, V.A.8
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71
-
-
34347244058
-
-
6-DMSO) showed it to be stable at ambient temperature for at least 16 h.
-
6-DMSO) showed it to be stable at ambient temperature for at least 16 h.
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-
-
-
72
-
-
34347268291
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-
Residual ketoacid was always seen in the crude reaction mixtures after work-up
-
Residual ketoacid was always seen in the crude reaction mixtures after work-up.
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-
-
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73
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-
2342572295
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Selected references on 4-fluorobenzyne: (a) Liu, H.; Zhang, X.; Wang, C.; Guo, W.; Wu, Y.; Yang, S. J. Phys. Chem. A 2004, 108, 3356.
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Selected references on 4-fluorobenzyne: (a) Liu, H.; Zhang, X.; Wang, C.; Guo, W.; Wu, Y.; Yang, S. J. Phys. Chem. A 2004, 108, 3356.
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74
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0141673219
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(b) Maurin, P.; Ibrahim-Ouali, M.; Parrain, J.-L.; Santelli, M. THEOCHEM 2003, 637, 91.
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(2003)
THEOCHEM
, vol.637
, pp. 91
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Maurin, P.1
Ibrahim-Ouali, M.2
Parrain, J.-L.3
Santelli, M.4
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75
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0005779874
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(c) Dkhar, P. G. S.; Lyngdoh, R. H. D. Proc. Indian Acad. of Sci., Chem. Sci. 2000, 112, 97.
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(2000)
Proc. Indian Acad. of Sci., Chem. Sci
, vol.112
, pp. 97
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Dkhar, P.G.S.1
Lyngdoh, R.H.D.2
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76
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0000028441
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(d) Langenaeker, W.; De Proft, F.; Geerlings, P. J. Phys. Chem. A 1998, 102, 5944.
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(1998)
J. Phys. Chem. A
, vol.102
, pp. 5944
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-
Langenaeker, W.1
De Proft, F.2
Geerlings, P.3
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77
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3943099915
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For a detailed study on the stability of 2-lithio-1,4-difluorobenzene and the corresponding Grignard reagent, see Scott, J. P.; Brewer, S. E.; Davies, A. J.; Brands, K. M. J. Synlett 2004, 9, 1646.
-
For a detailed study on the stability of 2-lithio-1,4-difluorobenzene and the corresponding Grignard reagent, see Scott, J. P.; Brewer, S. E.; Davies, A. J.; Brands, K. M. J. Synlett 2004, 9, 1646.
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-
-
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78
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-
7044239411
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-
The physical form of the cerium chloride used in the transmetalation step is crucial in ensuring high yields. For a detailed investigation, see Conlon, D. A, Kumke, D, Moeder, C, Hardiman, M, Hutson, G, Sailer, L. Adv. Synth. Catal. 2004, 346, 1307
-
The physical form of the cerium chloride used in the transmetalation step is crucial in ensuring high yields. For a detailed investigation, see Conlon, D. A.; Kumke, D.; Moeder, C.; Hardiman, M.; Hutson, G.; Sailer, L. Adv. Synth. Catal. 2004, 346, 1307.
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79
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0003942864
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The increasing proportion of equatorial vs axial attack on cyclohexananones, with increasing steric nucleophilic bulk has been noted, see a, Wiley-Interscience: New York
-
The increasing proportion of equatorial vs axial attack on cyclohexananones, with increasing steric nucleophilic bulk has been noted, see (a) Eliel, E. L.; Wilen, S. H.; Mander, L. N. Stereochemistry of Organic Compounds; Wiley-Interscience: New York, 1994; pp 735-736, 880-887.
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(1994)
Stereochemistry of Organic Compounds
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Eliel, E.L.1
Wilen, S.H.2
Mander, L.N.3
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80
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0026462898
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(b) Reetz, M. T.; Haning, H.; Stanchev, S. Tetrahedron Lett. 1992, 33, 6963.
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(1992)
Tetrahedron Lett
, vol.33
, pp. 6963
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Reetz, M.T.1
Haning, H.2
Stanchev, S.3
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81
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0000287274
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(c) Molander, G. A.; Burkhardt, E. R.; Weinig, P. J. Org. Chem. 1990, 55, 4990.
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(1990)
J. Org. Chem
, vol.55
, pp. 4990
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-
Molander, G.A.1
Burkhardt, E.R.2
Weinig, P.3
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83
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0001396585
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-
(e) Reetz, M. T.; Kyung, S. H.; Hullman, M. Tetrahedron 1986, 42, 2931.
-
(1986)
Tetrahedron
, vol.42
, pp. 2931
-
-
Reetz, M.T.1
Kyung, S.H.2
Hullman, M.3
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84
-
-
34347219972
-
-
Based on survey of potential commercial suppliers
-
Based on survey of potential commercial suppliers.
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-
-
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85
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-
34347216567
-
-
2-Lithio-1,4-difluorobenzene can also be prepared by halogen-metal exchange using n-BuLi according to the procedure of Butler, I. R.; Lindsell, W. E.; Preston. P. N. J. Chem. Res. Synop. 1981, 7, 185.
-
2-Lithio-1,4-difluorobenzene can also be prepared by halogen-metal exchange using n-BuLi according to the procedure of Butler, I. R.; Lindsell, W. E.; Preston. P. N. J. Chem. Res. Synop. 1981, 7, 185.
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-
-
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86
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0000775931
-
-
The aryllithium reagent is most likely complexed with TMEDA in our reaction. Axial addition predominates in the addition of phenyllithium to 4-tert-butylcyclohexanone, see Ashby, E. C.; Noding, S. R. J. Org. Chem. 1979, 44, 4371.
-
The aryllithium reagent is most likely complexed with TMEDA in our reaction. Axial addition predominates in the addition of phenyllithium to 4-tert-butylcyclohexanone, see Ashby, E. C.; Noding, S. R. J. Org. Chem. 1979, 44, 4371.
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-
-
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87
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33845552223
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-
The following acid catalysts were screened in the reaction of 4-chlorothiophenol with 4a and 4b in dichloromethane: Sc(OTf) 3, Ti(OEt)4, BF3·Et2O, Et2AlCl, Zn(OTf)2, ZnI2, SnCl2, SnCl4, TiCl4, InCl2, InCl3, LiClO4, B(OMe)3, BEt3, EtAlCl2, MeAlCl2, AlCl3, AlBr3, MeSO3H, CF3-SO3H, CF3SO2)2NH. Phenylthio ethers have been prepared previously from tertiary alcohols using ZnI2 as the Lewis acid, see Guindon, Y, Frenette, R, Fortin, R, Rokach, J. J. Org. Chem. 1983, 48, 1357
-
2 as the Lewis acid, see Guindon, Y.; Frenette, R.; Fortin, R.; Rokach, J. J. Org. Chem. 1983, 48, 1357.
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-
-
-
88
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-
34347251766
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-
A total of 47 solvents and solvent combinations were screened
-
A total of 47 solvents and solvent combinations were screened.
-
-
-
-
89
-
-
0004018410
-
-
A solvent quoted as possessing a higher polarity than water, see, VCH (UK) Ltd, Cambridge
-
A solvent quoted as possessing a higher polarity than water, see Reichardt, C. Solvents and Solvent Effects in Organic Chemistry; VCH (UK) Ltd.: Cambridge, 1990; p 366.
-
(1990)
Solvents and Solvent Effects in Organic Chemistry
, pp. 366
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-
Reichardt, C.1
-
90
-
-
34347248259
-
-
This solvent was chosen because it is miscible with 1,1,1,3,3,3- hexafluoro-2-propanol, without enhancing the solubility of 8 and 9
-
This solvent was chosen because it is miscible with 1,1,1,3,3,3- hexafluoro-2-propanol, without enhancing the solubility of 8 and 9.
-
-
-
-
91
-
-
0037048606
-
-
Thioethers have been prepared using dodecylbenzenesulfonic acid-catalyzed dehydration of alcohols, see
-
Thioethers have been prepared using dodecylbenzenesulfonic acid-catalyzed dehydration of alcohols, see Manabe, K.; Iimura, S.; Sun, X.-M.; Kobayashi, S. J. Am. Chem. Soc. 2002, 124, 11971.
-
(2002)
J. Am. Chem. Soc
, vol.124
, pp. 11971
-
-
Manabe, K.1
Iimura, S.2
Sun, X.-M.3
Kobayashi, S.4
-
92
-
-
34347269032
-
-
The structures of 8 and 9 were confirmed by single-crystal X-ray crystallography. See Supporting Information for details.
-
The structures of 8 and 9 were confirmed by single-crystal X-ray crystallography. See Supporting Information for details.
-
-
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-
93
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0001074604
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Trost, B. M, Fleming, I, Ley, S. V, Eds, Pergamon Press: Oxford, and references therein
-
Comprehensive Organic Synthesis; Trost, B. M.; Fleming, I.; Ley, S. V., Eds.; Pergamon Press: Oxford, 1993; vol. 7, p 766 and references therein.
-
(1993)
Comprehensive Organic Synthesis
, vol.7
, pp. 766
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