Download e-book for iPad: α-Aminoacid-N-Carboxy-Anhydrides and Related Heterocycles: by Professor Dr. Hans Rytger Kricheldorf (auth.), Professor Dr.

By Professor Dr. Hans Rytger Kricheldorf (auth.), Professor Dr. Hans Rytger Kricheldorf (eds.)

ISBN-10: 3642715869

ISBN-13: 9783642715860

ISBN-10: 3642715885

ISBN-13: 9783642715884

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Extra resources for α-Aminoacid-N-Carboxy-Anhydrides and Related Heterocycles: Syntheses, Properties, Peptide Synthesis, Polymerization

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Thus the question arises whether 13C NMR spectroscopy is better suited to solve this problem. In this connection it is of basic importance that the/carbonyl (C-2) group absorb 10--20 ppm up-field tt tt tt e 32 I. m. c e d j AI 140 I 120 I 100 I 80 I 60 I 40 I 20 J 0 Fig. 8. Two 22,63 MHz l3C NMR-spectra (measured in DMSO-d 6): (A) N-tertbutyl-Gly-NCA; (B) N-acetyl-Gly-NCA. (From Ref. 81 with slightly changed signal assignments) of all peptide and ester groups, so that even a large excess of the latter groups does not result in overlapping signals (Fig.

25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 1. Synthesis and Characterization of NCAs Devey, R. , Schoenewaldt, E. , W. , Arison, B. , Veber, D. , Denkewalter, R. , Hirschmann, R. : J. Am. Chern. Soc. 90, 3254 (1968) Veber, D. , Denkewalter, R. : J. argo Chern. 34, 753 (1969) Denkewalter, R. , Veber, D. , Holly, F. : J. Am. Chern. Soc. 91, 502 (1969) Devey, R. , Schoenewaldt, E. , W. , Arison, B.

Liebigs Ann. Chern. 124. Kricheldorf, H. : Makromol. Chern. 125. : Liebigs Ann. Chern. 126. : Chern. Ber. 127. : Bull. Soc. Chirn. Fr. 128. Cook, A. , Levy, A. : J. Chern. Soc. 129. Cook, A. , Levy, A. : J. Chern. Soc. 130. Cook, A. : J. Chern. Soc. 131. : J. Chern. Soc. 132. Cook, A. , Elvidge, J. : J. Chern. Soc. 133. Cook, A. , Levy, A. : J. Chern. Soc. 134. Cook, A. , Levy, A. : J. Chern. Soc. 135. Davies, A. , Levy, A. : J. Chern. Soc. 136. : Acta Chern. Scand. 137. Kricheldorf, H. : Makrornol.

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α-Aminoacid-N-Carboxy-Anhydrides and Related Heterocycles: Syntheses, Properties, Peptide Synthesis, Polymerization by Professor Dr. Hans Rytger Kricheldorf (auth.), Professor Dr. Hans Rytger Kricheldorf (eds.)


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