Read e-book online Activating agents and protecting groups PDF

By Anthony J. Pearson, William R. Roush

ISBN-10: 0471979279

ISBN-13: 9780471979272

Recognising the necessity for a value potent reference paintings that bargains not just with the preferred reagents in synthesis but in addition reaches the widest attainable viewers of working towards natural chemists, the editors of 'The Encyclopedia of Reagents for natural Synthesis' (EROS) have constructed an inventory of an important and worthy reagents hired within the box, comfortably offered in 4 separate volumes. The reagents integrated during this quantity mirror the truth that maintaining teams and activation techniques are frequently utilized in blend. there are numerous circumstances within the synthesis of average and unnatural items, prescription drugs, oligosaccharides, and oligonucleotides, etc., the place comparable strategies needs to be hired to avoid undesired activation or response of performance. for that reason, crucial reagents used to guard amines, alcohols, carboxyl, carbonyl and different reactive practical teams are incorporated during this quantity. The checklist of activating brokers contains popular reagents that turn on useful teams for substitution or removal reactions, in addition to much less conventional examples, e.g. HMPA used to "activate" enolates and alkyllithium reagents to extend the nucleophilicity. each one article comprises the entire details present in EROS in addition to multiplied comparable reagents listings and extra references to let the reader to fast entry a vast variety of data that's past the scope of the reagent entries themselves. this article is going to end up a useful source.

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JACS 1988, 110, 7764. 32. (a) Olah, G. ; Staral, J. ; Spear, R. ; Liang, G. JACS 1975, 97, 5489. (b) Olah, G. ; Staral, J. ; Paquette, L. A. JACS 1976, 98, 1267. (a) Pozdnyakovich, Y. ; Shteingarts, V. D. JFC 1974, 4, 283. (b) Galakhov, M. ; Petrov, V. ; Chepik, S. ; Belen'kii, G. ; Bakhmutov, V. ; German, L. S. IZV 1989, 1773. (c) Petrov, V. ; Belen'kii, G. ; German, L. IZV1984, 438. 33. Lists of Abbreviations and Journal Codes on Endpapers Coupling Reagent. 1 Reaction of a-amino protected amino acids or dipeptides with equimolar amounts of α-carboxyl pro­ tected amino acids or dipeptides and Triethylamine (2 equiv) in DMF proceed cleanly overnight at —10 to 0 °C, giving the corre­ sponding peptides in good yields (81-97%) (eq 1).

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H. S. Patent 5 124 486, 1992. ; Van Ess, P. R. JACS 1933, 55, 1258. ; Schulze, F. JACS 1927, 49, 2328. (a) Percival, W. C ; Wagner, R. ; Cook, N. C. JACS 1953, 75, 3731. ; Martina, V; Ronzini, L. TL 1984, 25, 4805. ; Naso, P. JOM 1991, 405, 53. ; Tominaga, Y. JOC 1989, 54, 3254. ; Smuda, H. Ger. Patent 3 744619,1989. 77. 78. 79. (a) Kulinkovich, O. ; Tischenko, I. ; Sorokin, V. L. S 1985, 1058. (b) Kulinkovich, O. ; Tischenko, I. ; Sorokin, V. L. JOU 1985, 21, 1514. (c) Mamedov, E. ; Ismailov, A.

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Activating agents and protecting groups by Anthony J. Pearson, William R. Roush

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