Fragment analogs

Similarly, the stereospecific formation of cis-2-butene from cis-2,3-dimethylthiirane dioxide19 may be rationalized in terms of a stereospecific ring opening to give the threo-sulfinate 120 which, in turn, decomposes stereospecifically to yield the cis-alkene, hydroxide ion and sulfur dioxide73. The parent thiirane dioxide fragments analogously to ethylene, hydroxide ion and sulfur dioxide (equation 49). 

Phosphorus tribromide, 426 Photochemical rearrangement, of 4-hydroxy-thiazolium innersalt, 375 Photochemistry, mass spectra fragmentation analogy with, of 2-imino-4-thia-zolines, 27... 

The mass spectra of pyrrole and its derivatives reveal that the main fission reactions are operative as in corresponding furans and thiophenes.41 The spectrum of pyrrole shows the fragment analogous... 

Table V. Myotropic Activities of the Leucokinin Fragments/Analogs on Isolated Cockroach Hindgut...

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