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-
26
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0347736693
-
-
(a) 4c (99% yield from 4b): ref. (6c)
-
(a) 4c (99% yield from 4b): ref. (6c);
-
-
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27
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0001490761
-
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(b) 4d (70% yield from 4b): Conrad, P. C.; Kwiatkowski, P. L.; Fuchs, P. L. J. Org. Chem. 1987, 52, 586;
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Conrad, P.C.1
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28
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0006059341
-
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(c) 4e (92% overall yield from 4a) and 4f (87% overall yield from 4a): Barreiro, E. J.; Costa, P. R. R.; Barros, P. R. V. R.; Queiroz, W. M. J. Chem. Res., (S) 1982, 102;
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29
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0345845183
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Braz. Ped. PI BR 86 93629
-
(d) 4g (79% overall yield form 4a): Amorim, M. B.; Costa, P. R. R. Braz. Ped. PI BR 86 93629 [Chem. Abstr. 1988, 109, 230527] and Gal, G.; Sletzinger, M.; Pines, S. H. British Patent Appl. 2059955 [Chem. Abstr. 1981, 95, 150202];
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0347736688
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British Patent Appl. 2059955
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(d) 4g (79% overall yield form 4a): Amorim, M. B.; Costa, P. R. R. Braz. Ped. PI BR 86 93629 [Chem. Abstr. 1988, 109, 230527] and Gal, G.; Sletzinger, M.; Pines, S. H. British Patent Appl. 2059955 [Chem. Abstr. 1981, 95, 150202];
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Gal, G.1
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0346476026
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(e) 4h (88% yield from 4a): Kaiser, E.; Domba, E.; Skibe, M. J. Org. Chem. 1962, 27, 2931.
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32
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85085674412
-
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1H NMR duplicated signals at δ 6.06 and 6.07
-
1H NMR duplicated signals at δ 6.06 and 6.07;
-
-
-
-
33
-
-
0347106215
-
-
4f was the only non-phenolic product observed (by tic analysis) when the reaction of 4g was interrupted before completeness
-
(b) 4f was the only non-phenolic product observed (by tic analysis) when the reaction of 4g was interrupted before completeness.
-
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34
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0018159015
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Kobayashi, S.; Kihara, M.; Yamahara, Y. Chem. Pharm. Bull. 1978, 26, 3113.
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85085674769
-
-
note
-
19. Henceforth, the structures 9b, 9c, 9d, and 10e could be assigned to the chloro ether intermediates obtained from, 4b, 4c, 4d, and 4e, respectively.
-
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43
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0003720012
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0347106211
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ref. 4 and references cited therein
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(c) ref. 4 and references cited therein.
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85085674568
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note
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-1) than 16c. The energetic, as well as the corresponding structural, data of these complexes are available as supplementary material.
-
-
-
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55
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0347106209
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Robson, G. H., Ed.; VCH: New York
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(a) Haaland, A., in Coodination Chemistry of Aluminum; Robson, G. H., Ed.; VCH: New York, 1993, p 8;
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Haaland, A.1
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84914751407
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-1 less stable than 22). Nevertheless, experimental data based on gas-basicity [(a) Lias, S. G.; Liebman, J. F.; Levin, R. D. J. Phys. Chem. Ref. Data 1984, 13, 695;
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59
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0347106210
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2) has an extremely low basicity, lower than common ethers. However, the calculated complex 22 shows no significant, and regioselective, changes in the acetalic C-O bond lengths, as observed in complexes 18 to 21. (Formula Presented)
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0002036135
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2) has an extremely low basicity, lower than common ethers. However, the calculated complex 22 shows no significant, and regioselective, changes in the acetalic C-O bond lengths, as observed in complexes 18 to 21. (Formula Presented)
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32, to optimize transition structures
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32, to optimize transition structures.
-
-
-
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