Analytical Chemistry p. 534 - 538 (1993)
Update date:2022-08-02
Topics:
Hall, Randal A.
Jurkiewicz, Antoni
Maciel, Gary E.
The synthesis and NMR relaxation properties of 4-(N-methylpyrrolidino)bicyclo[3.2.1]octan-8-one triflate (321) are described. The use of 13CO-enriched 321 as a 13C intensity reference is justified and demonstrated. The dominant 13C peak in 321-13CO is 217 ppm, far from most other 13C chemical shifts of diamagnetic organic compounds. Hence, this intensity reference peak avoids peak overlap problems for most organic compounds.
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