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70349351685
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For a comprehensive list of references using 2,2′-bipyridines as allosteric centres, see references 7-16 in ref
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0034723305
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Please note that monofunctionalized cavitands can also be prepared in a functionalization-defunctionalization approach
-
Please note that monofunctionalized cavitands can also be prepared in a functionalization-defunctionalization approach: a) J. L. Irwin, M. S. Sherburn, J. Org. Chem. 2000, 65, 602-605;
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24
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70349364385
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-
Compound 23 could also be prepared selectively by using a slight excess of bipyridine 10 compared to cavitand 19. However, the yield obtained in this approach was almost identical. Since the separation of 2 and 23 did not cause any severe trouble we sticked to the method depicted in Scheme 9
-
Compound 23 could also be prepared selectively by using a slight excess of bipyridine 10 compared to cavitand 19. However, the yield obtained in this approach was almost identical. Since the separation of 2 and 23 did not cause any severe trouble we sticked to the method depicted in Scheme 9.
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25
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27
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0003136619
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The formation of heteroleptic complexes can also be seen through the eyes of dynamic combinatorial chemistry. There, numerous investigations have been, carried out to study the influence of the relative stabilities of individual, components on the final composition of the dynamic combinatorial libraries. The final mixture will be that with the lowest total free enthalpy and thus the most stable member need not exist in highest concentration
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c) M. Schmittel, A. Ganz, Chem. Commun. 1997, 999-1000. The formation of heteroleptic complexes can also be seen through the eyes of dynamic combinatorial chemistry. There, numerous investigations have been, carried out to study the influence of the relative stabilities of individual, components on the final composition of the dynamic combinatorial libraries. The final mixture will be that with the lowest total free enthalpy and thus the most stable member need not exist in highest concentration.
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53
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70349351683
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Please note that experiments with 2,9-dichloro-l,10-phenanthroline and related boronic acids were not successful even with broad variation of the reaction conditions, so the iodo compound 26 has to be used instead
-
Please note that experiments with 2,9-dichloro-l,10-phenanthroline and related boronic acids were not successful even with broad variation of the reaction conditions, so the iodo compound 26 has to be used instead.
-
-
-
-
54
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70349374488
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-
Please note that because of the unknown amount of boronic acid 27 in the crude product and incomplete conversion, additional crude boronic acid 27 and tetrakis(triphenylphosphane)palladium(O) were added after 18 h and the mixture was stirred for another 20 h to yield the desired product 25
-
Please note that because of the unknown amount of boronic acid 27 in the crude product and incomplete conversion, additional crude boronic acid 27 and tetrakis(triphenylphosphane)palladium(O) were added after 18 h and the mixture was stirred for another 20 h to yield the desired product 25.
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55
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33845184181
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a) L. M. Tunstad, J A. Tucker, E. Dalcanale, J. Weiser, J. A. Bryant, J. C. Sherman, R. C. Helgeson, C. B. Knobler, D. J. Cram, J. Org. Chem. 1989, 54, 1305-1312;
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56
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33845278346
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b) D. J. Cram, S. Karbach, H.-E. Kim, C. B. Knobler, E. F. Maverick, J. L. Ericson, R. C. Helgeson, J. Am. Chem. Soc. 1988, 110, 2229-2237.
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57
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0009734576
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This compound has been described before. However, it was synthesised in a different way
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This compound has been described before. However, it was synthesised in a different way: a) G Maerker, F. H. Case, J. Am. Chem. Soc. 1958, 80, 2745-2748;
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59
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33845185125
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This compound has been described before. However, it was synthesised in a different way
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This compound has been described before. However, it was synthesised in a different way: a) Y. Aoyama, Y. Tanaka, S. Sugahara, J. Am. Chem. Soc. 1989, 111, 5397-5404;
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61
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0019821486
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This compound has been described before. However, it was synthesised in a different way
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This compound has been described before. However, it was synthesised in a different way: P. L. Ferrarini, G. Biagi, O. Livi, G. Primofiore, M. Carpene, J. Heterocycl Chem. 1981, 18, 1007-10.10.
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Ferrarini, P.L.1
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