ISSN:
0749-1581
Keywords:
amino acids
;
tert-butyldimethylsilyl derivatives
;
trimethylsilyl derivatives
;
29Si NMR
;
13C NMR
;
chemical shifts
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
29Si and 13C NMR chemical shifts are reported for tert-butyldimethylsilyl (TBDMS) derivatives of ten common amino acids. The 29Si chemical shifts of TBDMS derivatives of various functionalities encountered fall into distinct spectral regions. The 29Si chemical shifts correlate linearly (r = 0.999) with the 29Si shifts reported earlier for the trimethylsilyl (TMS) derivatives of the same amino acids, the 29Si chemical shift values in the TBDMS derivatives being larger than those in the TMS derivatives (in Si—N groups this downfiled shift varies between 3.8 and 5.8 ppm and in Si—O groups between 1.4 and 1.7 ppm).
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260330609
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