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Ketcha, D.M.1
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Y. Sakata, Y. Hirano, H. Tatemitsu, S. Misumi, H. Ochiai, and H. Shibata Tetrahedron 45 1989 4717 4727
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Sakata, Y.1
Hirano, Y.2
Tatemitsu, H.3
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0035929199
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S.U. Pandya, C. Garçon, P.Y. Chavant, S. Py, and Y. Vallée Chem. Commun. 2001 1806 1807
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Pandya, S.U.1
Garçon, C.2
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S. Pinet, S.U. Pandya, P.Y. Chavant, A. Ayling, and Y. Vallée Org. Lett. 4 2002 1463 1466
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Vallée, Y.5
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13
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27744500187
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note
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3-Ethyl-2,4-dimethylpyrrole 1b was prepared by LAH-mediated reduction from commercially available compound 1a in a 81% isolated yield.
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14
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0027994561
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For the preparation of nitrones, see: for 2a:A. Dondoni, S. Franco, F. Junquera, F. Merchán, P. Merino, and T. Tejero Synth. Commun. 24 1994 2537 2550
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Synth. Commun.
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Dondoni, A.1
Franco, S.2
Junquera, F.3
Merchán, F.4
Merino, P.5
Tejero, T.6
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15
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33751553196
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for 2b:S.-I. Murahashi, H. Mitsui, T. Shiota, T. Tsuda, and S. Watanabe J. Org. Chem. 55 1990 1736 1744
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Murahashi, S.-I.1
Mitsui, H.2
Shiota, T.3
Tsuda, T.4
Watanabe, S.5
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16
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0005168291
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See for example: Y. Sakata, Y. Hirano, H. Tatemitsu, S. Misumi, H. Ochiai, and H. Shibata Tetrahedron 45 1989 4717 4727
-
(1989)
Tetrahedron
, vol.45
, pp. 4717-4727
-
-
Sakata, Y.1
Hirano, Y.2
Tatemitsu, H.3
Misumi, S.4
Ochiai, H.5
Shibata, H.6
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17
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24744453935
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First isolation of indol-3′-ylcarbinols under acidic clay-catalyzed conditions has been recently described: M. Chakrabarty, S. Karmakar, and Y. Harigaya Heterocycles 65 2005 37 48
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(2005)
Heterocycles
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Chakrabarty, M.1
Karmakar, S.2
Harigaya, Y.3
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20
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27744455056
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note
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Similarly to the indole series, the second pyrrole would add onto intermediate 2-alkylidene-2H-pyrrolium cations. See Ref. 7.
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21
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0028825632
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Unsymmetrical 2,2′-bis(pyrrolyl)alkanes are often prepared: from pyrroles and aldehydes using statistical approaches, sometimes requiring tedious chromatographic separation: C.-H. Lee, F. Li, K. Iwamoto, J. Dadok, A.A. Bothner-By, and J.S. Lindsey Tetrahedron 51 1995 11645 11672 and references cited therein
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Tetrahedron
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Lee, C.-H.1
Li, F.2
Iwamoto, K.3
Dadok, J.4
Bothner-By, A.A.5
Lindsey, J.S.6
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25
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0032385148
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Compound 9 was previously obtained from benzaldehyde in 33% yield and used for the syntheses of core-modified porphyrins. See: W.-S. Cho, and C.-H. Lee Bull. Korean Chem. Soc. 19 1998 314 319
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Bull. Korean Chem. Soc.
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, pp. 314-319
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Cho, W.-S.1
Lee, C.-H.2
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26
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27744581453
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For the preparation 2,2′-bis(furyl)alkanes or 2,2′- bis(thienyl)alkanes using aldehydes under acidic conditions and their synthetic applications, see: A. Riad, Z. Mouloungui, M. Delmas, and A. Gaset Synth. Commun. 24 1989 2571 2576
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Riad, A.1
Mouloungui, Z.2
Delmas, M.3
Gaset, A.4
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29
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27744496993
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note
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2O: C, 73.01; H, 7.88; N, 12.16. Found (%): C, 72.63; H, 7.93; N, 11.98.
-
-
-
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30
-
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27744443265
-
-
note
-
2: C, 72.58; H, 8.33; N, 8.91. Found (%): C, 72.36; H, 8.35; N, 8.52.
-
-
-
-
31
-
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27744583053
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-
note
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2: C, 72.71; H, 7.41; N, 6.06. Found (%): C, 72.53; H, 7.54; N, 5.95.
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-
-
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32
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0000997345
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A. Dondoni, F. Junquera, F.L. Merchán, P. Merino, M.-C. Scherrmann, and T. Tejero J. Org. Chem. 62 1997 5484 5496
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J. Org. Chem.
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, pp. 5484-5496
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Dondoni, A.1
Junquera, F.2
Merchán, F.L.3
Merino, P.4
Scherrmann, M.-C.5
Tejero, T.6
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33
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27744603464
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Alkaline 2,3,5-triphenyltetrazolium chloride gives bright red coloration with hydroxylamines. H. Metz Naturwissenchaften 48 1961 569 570
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(1961)
Naturwissenchaften
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, pp. 569-570
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Metz, H.1
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