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For pertinent reviews, see: (a) Kant, J.; Walker, D. G. In the Organic Chemistry of β-Lactams; Georg, G. I., Ed.; Wiley-VCH: New York, 1993; p. 121; (b) Durckheimer, W.; Blumbach, J.; Lattrell, R.; Scheunemann, K. H. Angew. Chem., Int. Ed. Engl. 1985, 24, 180.
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In the Organic Chemistry of β-Lactams
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Kant, J.1
Walker, D.G.2
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For pertinent reviews, see: (a) Kant, J.; Walker, D. G. In the Organic Chemistry of β-Lactams; Georg, G. I., Ed.; Wiley-VCH: New York, 1993; p. 121; (b) Durckheimer, W.; Blumbach, J.; Lattrell, R.; Scheunemann, K. H. Angew. Chem., Int. Ed. Engl. 1985, 24, 180.
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Angew. Chem., Int. Ed. Engl.
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Durckheimer, W.1
Blumbach, J.2
Lattrell, R.3
Scheunemann, K.H.4
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5
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Stuttgart, New York: Georg Thieme Verlag
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Kocienski P.J. Protecting Groups. 1994;Georg Thieme Verlag, Stuttgart, New York.
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(1994)
Protecting Groups
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Kocienski, P.J.1
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0037121595
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A new solid-phase approach to NH-β-lactams has been recently described:
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A new solid-phase approach to NH-β-lactams has been recently described: Dasgupta S.K., Banik B.K. Tetrahedron Lett. 43:2002;9445.
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(2002)
Tetrahedron Lett.
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Dasgupta, S.K.1
Banik, B.K.2
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0141629604
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It has been described very recently the radical-promoted deprotection of N-Cbz derivatives of amides:
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It has been described very recently the radical-promoted deprotection of N-Cbz derivatives of amides: Bennasar M.-L., Roca T., Padullés A. Org. Lett. 5:2003;569.
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(2003)
Org. Lett.
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Bennasar, M.-L.1
Roca, T.2
Padullés, A.3
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Alcaide B., Pérez-Castells J.P., Sánchez-Vigo B., Sierra M.A. J. Chem. Soc., Chem. Commun. 1994;587.
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Alcaide, B.1
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Sánchez-Vigo, B.3
Sierra, M.A.4
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For a review on this subject, see:
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For a review on this subject, see: Alcaide B., Almendros P. Chem. Eur. J. 9:2003;1258.
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Chem. Eur. J.
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Palomo C., Aizpurua J.M., Legido M., Mielgo A., Galarza R. Chem. Eur. J. 3:1997;1432.
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Chem. Eur. J.
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Palomo, C.1
Aizpurua, J.M.2
Legido, M.3
Mielgo, A.4
Galarza, R.5
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0037420873
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For the N-alkyl protection of butyl L-pyroglutamate under these conditions, see:
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For the N-alkyl protection of butyl L-pyroglutamate under these conditions, see: Itoh T., Miyazaki M., Ikeda S., Nagata K., Yokoya M., Matsuya Y., Enomoto Y., Ohsawa A. Tetrahedron. 59:2003;3527.
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Tetrahedron
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Itoh, T.1
Miyazaki, M.2
Ikeda, S.3
Nagata, K.4
Yokoya, M.5
Matsuya, Y.6
Enomoto, Y.7
Ohsawa, A.8
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For recent reviews on the ketene-imine approach to β-lactams, see: (a) Palomo, C.; Aizpurua, J. M.; Ganboa, I.; Oiarbide, M. Eur. J. Org. Chem. 1999, 3223; (b) Tidwell, T. T. Ketenes; Wiley: New York, 1995; pp. 518-527; (c) Georg, G. I.; Ravikumar, V. T. In The Organic Chemistry of β-lactams; Georg, G. I., Ed.; VCH: Weinheim: New York, 1993; Chapter 3, p. 295.
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Eur. J. Org. Chem.
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Palomo, C.1
Aizpurua, J.M.2
Ganboa, I.3
Oiarbide, M.4
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20
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0003828015
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Wiley: New York
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For recent reviews on the ketene-imine approach to β-lactams, see: (a) Palomo, C.; Aizpurua, J. M.; Ganboa, I.; Oiarbide, M. Eur. J. Org. Chem. 1999, 3223; (b) Tidwell, T. T. Ketenes; Wiley: New York, 1995; pp. 518-527; (c) Georg, G. I.; Ravikumar, V. T. In The Organic Chemistry of β-lactams; Georg, G. I., Ed.; VCH: Weinheim: New York, 1993; Chapter 3, p. 295.
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(1995)
Ketenes
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Tidwell, T.T.1
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21
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0002674759
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Georg, G. I., Ed.; VCH: Weinheim: New York; Chapter 3
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For recent reviews on the ketene-imine approach to β-lactams, see: (a) Palomo, C.; Aizpurua, J. M.; Ganboa, I.; Oiarbide, M. Eur. J. Org. Chem. 1999, 3223; (b) Tidwell, T. T. Ketenes; Wiley: New York, 1995; pp. 518-527; (c) Georg, G. I.; Ravikumar, V. T. In The Organic Chemistry of β-lactams; Georg, G. I., Ed.; VCH: Weinheim: New York, 1993; Chapter 3, p. 295.
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(1993)
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Georg, G.I.1
Ravikumar, V.T.2
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22
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85030966411
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Attempts to effect the reaction at temperatures lower than 50°C slowed the reaction considerably. Incomplete conversion was observed on decreasing the amount of catalyst.
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Attempts to effect the reaction at temperatures lower than 50°C slowed the reaction considerably. Incomplete conversion was observed on decreasing the amount of catalyst.
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