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1
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0000769164
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The concept emerged from the systematic studies of Gilman, Wittig and Hauser, and found numerous disciples, notably Gschwend, Beak and Snieckus: (a)
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The concept emerged from the systematic studies of Gilman, Wittig and Hauser, and found numerous disciples, notably Gschwend, Beak and Snieckus: (a) Gilman H., Bebb R.L. J. Am. Chem. Soc. 61:1939;109-112.
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(1939)
J. Am. Chem. Soc.
, vol.61
, pp. 109-112
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Gilman, H.1
Bebb, R.L.2
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7
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77957786498
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In the π-deficient azaaromatics series, see: (a)
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In the π-deficient azaaromatics series, see: (a) Quéguiner G., Marsais F., Snieckus V., Epsztajn J. Adv. Heterocycl. Chem. 52:1991;187-304.
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(1991)
Adv. Heterocycl. Chem.
, vol.52
, pp. 187-304
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Quéguiner, G.1
Marsais, F.2
Snieckus, V.3
Epsztajn, J.4
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16
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0025816845
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Alo B.I., Kandil A., Patil P.A., Sharp M.J., Siddiqui M.A., Snieckus V. J. Org. Chem. 56:1991;3763-3768.
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(1991)
J. Org. Chem.
, vol.56
, pp. 3763-3768
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Alo, B.I.1
Kandil, A.2
Patil, P.A.3
Sharp, M.J.4
Siddiqui, M.A.5
Snieckus, V.6
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18
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85030911489
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Note that functionalization at both C6 and C5′ was observed using a large excess of LTMP, and chlorotrimethylsilane as an in situ trap
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Note that functionalization at both C6 and C5′ was observed using a large excess of LTMP, and chlorotrimethylsilane as an in situ trap.
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19
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0030910664
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Studies have shown that ester-LDA complexes are highly unlikely: (a)
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Studies have shown that ester-LDA complexes are highly unlikely: (a) Sun X., Kenkre S.L., Remenar J.F., Gilchrist J.H., Collum D.B. J. Am. Chem. Soc. 119:1997;4765-4766.
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(1997)
J. Am. Chem. Soc.
, vol.119
, pp. 4765-4766
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Sun, X.1
Kenkre, S.L.2
Remenar, J.F.3
Gilchrist, J.H.4
Collum, D.B.5
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23
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0000679903
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Beak P., Basu A., Gallagher D.J., Park Y.S., Thayumanavan S. Acc. Chem. Res. 29:1996;552-560.
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(1996)
Acc. Chem. Res.
, vol.29
, pp. 552-560
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Beak, P.1
Basu, A.2
Gallagher, D.J.3
Park, Y.S.4
Thayumanavan, S.5
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27
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85030907720
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The spectra were recorded with a ReactIR™ 4000 fitted with an immersible DiComp ATR probe (ASI Applied Systems, Mettler Toledo)
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The spectra were recorded with a ReactIR™ 4000 fitted with an immersible DiComp ATR probe (ASI Applied Systems, Mettler Toledo).
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29
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85030902688
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Deprotonation of N,N-diisopropylbenzamide was often achieved using alkyllithiums: see Ref. 1e. The reaction was suggested to proceed by a two-step mechanism of largely reversible initial complexation between the substrate and the organolithium reagent, which is followed by hydrogen transfer to the organolithium reagent
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Deprotonation of N,N-diisopropylbenzamide was often achieved using alkyllithiums: see Ref. 1e. The reaction was suggested to proceed by a two-step mechanism of largely reversible initial complexation between the substrate and the organolithium reagent, which is followed by hydrogen transfer to the organolithium reagent.
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30
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0001574588
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In situ infrared spectroscopy showed incomplete deprotonation when fewer equivalents of LTMP were used. Note that lithiation of 4-chloropyridine was achieved using 1 equiv of LDA in THF at -75 °C:
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In situ infrared spectroscopy showed incomplete deprotonation when fewer equivalents of LTMP were used. Note that lithiation of 4-chloropyridine was achieved using 1 equiv of LDA in THF at -75 °C: Gribble G.W., Saulnier M.G. Tetrahedron Lett. 21:1980;4137-4140.
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(1980)
Tetrahedron Lett.
, vol.21
, pp. 4137-4140
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Gribble, G.W.1
Saulnier, M.G.2
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31
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0035824331
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See for example: the deprotonation is sufficiently rapid to make this process competitive in rate with the reaction of the hindered base with the in situ electrophile
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See for example: Imahori T., Uchiyama M., Sakamoto T., Kondo Y. Chem. Commun. 23:2001;2450-2451. the deprotonation is sufficiently rapid to make this process competitive in rate with the reaction of the hindered base with the in situ electrophile.
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(2001)
Chem. Commun.
, vol.23
, pp. 2450-2451
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Imahori, T.1
Uchiyama, M.2
Sakamoto, T.3
Kondo, Y.4
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32
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0037127779
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Concerning cross-couplings of primary alkylboronic acids with aryl halides, see:
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Concerning cross-couplings of primary alkylboronic acids with aryl halides, see: Molander G.A., Yun C.-S. Tetrahedron. 58:2002;1465-1470.
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(2002)
Tetrahedron
, vol.58
, pp. 1465-1470
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Molander, G.A.1
Yun, C.-S.2
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33
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0343634626
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Onychine was first isolated from the Brazilian Annonaceae species (Onychopetalum amazonicum, Guatteria dielsiana) in 1976 and was shown to have anticandidal activity: (a)
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Onychine was first isolated from the Brazilian Annonaceae species (Onychopetalum amazonicum, Guatteria dielsiana) in 1976 and was shown to have anticandidal activity: (a) De Almeida M.E.L., Braz Filho R., von Bülow V., Gottlieb O.R., Maia J.G.S. Phytochemistry. 15:1976;1186-1187.
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(1976)
Phytochemistry
, vol.15
, pp. 1186-1187
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De Almeida, M.E.L.1
Braz Filho, R.2
Von Bülow, V.3
Gottlieb, O.R.4
Maia, J.G.S.5
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35
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85030899519
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note
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In the step from 5 to 10 , the recovered amide 5 was indeed deuterated at C5′
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36
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0001334799
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Concerning the deprotonation of methylpyridines, see: (a)
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Concerning the deprotonation of methylpyridines, see: (a) Kaiser E.W. Tetrahedron. 39:1983;2055-2064.
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(1983)
Tetrahedron
, vol.39
, pp. 2055-2064
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Kaiser, E.W.1
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43
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1242300606
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Koyama J., Tagahara K., Konoshima T., Kozuka M., Yano Y., Taniguchi M. Chem. Exp. 5:1990;557-560.
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(1990)
Chem. Exp.
, vol.5
, pp. 557-560
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Koyama, J.1
Tagahara, K.2
Konoshima, T.3
Kozuka, M.4
Yano, Y.5
Taniguchi, M.6
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46
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0027219088
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Koyama J., Ogura T., Tagahara K., Miyashita M., Irie H. Chem. Pharm. Bull. 41:1993;1297-1298.
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(1993)
Chem. Pharm. Bull.
, vol.41
, pp. 1297-1298
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Koyama, J.1
Ogura, T.2
Tagahara, K.3
Miyashita, M.4
Irie, H.5
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47
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85030891816
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Ger. Offen. 1994 Appl. DE 93-4301426 19930120;
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(i) Rentzea, C.; Meyer, N.; Kast, J.; Plath, P.; Koenig, H.; Harreus, A. ; Kardorff, U.; Gerber, M.; Walter, H. Ger. Offen. 1994 Appl. DE 93-4301426 19930120; Chem. Abstr., 1994, 121, 133986.
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Rentzea, C.1
Meyer, N.2
Kast, J.3
Plath, P.4
Koenig, H.5
Harreus, A.6
Kardorff, U.7
Gerber, M.8
Walter, H.9
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48
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66349104742
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(i) Rentzea, C.; Meyer, N.; Kast, J.; Plath, P.; Koenig, H.; Harreus, A. ; Kardorff, U.; Gerber, M.; Walter, H. Ger. Offen. 1994 Appl. DE 93-4301426 19930120; Chem. Abstr., 1994, 121, 133986.
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(1994)
Chem. Abstr.
, vol.121
, pp. 133986
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51
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85044269954
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For an azafluorenone synthesis using the Parham cyclization strategy, see: (b)
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For an azafluorenone synthesis using the Parham cyclization strategy, see: (b) Bracher F. Synlett. 1991;95-96.
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(1991)
Synlett
, pp. 95-96
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Bracher, F.1
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