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Electron impact induced fragmentations of some 2,2-disubstituted 1,3-oxathiolanes

✍ Scribed by Pirjo Vainiotalo; Vesa Nevalainen

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
545 KB
Volume
21
Category
Article
ISSN
1076-5174

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✦ Synopsis

The electron impact induced fragmentations of nine 2,2-disubstituted 1,Ioxathiolanes have been studied by means of exact mass measurement and metastable ion analysis. The ring cleavage almost always takes place so that the C(2e-S and C(5)-0 bonds are broken, leading to the most stable products. The nature of the substituents determines the primary fragmentations of molecular ions. Ring cleavage is important only if both substituents are alkyl groups or if the carbon attaching to the ring has an alkyl character. The loss of the substituent becomes the most favourable process if it is attached to the ring through the electron-deficient carbon atom.

Compounds 1-4

These compounds contain only alkyl substituents or substituents where the functional group is not situated

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