The mass spectra of pyridyl‐18‐crown‐6 and pyridyl‐15‐crown‐5 were determined. The spectra of five deuterium labeled analogues of pyridyl‐18‐crown‐6 coupled with high resolution data, allowed formulation of fragmentation pathways, which are dominated by several series involving the loss of C 2 H 4 O units.
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Whitney et al. (1980) studied this question.
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