Organic Mass Spectrometry p. 565 - 568 (1982)
Update date:2022-08-17
Topics:
Bergmann, Felix
Rahat, Miriam
Frank, Arie
Deutsch, Joseph
Under electron impact, 6-thiotheophyllines eliminate various fragments from the pyrimidine moiety.In a retro Diels-Alder reaction, they lose the fragment X=C=NCH3 from positions 1 and 2 of the pyrimidine ring.In 6-sulfinyltheophyllines, the sulfinyl group is the main target for fragmentation; it can lose either oxygen or sulfur, and the abundance of
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