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Stereochemical effects in mass spectrometry XV— chemical ionization of some substituted alkenes using dichlorocarbene as the reagent gas

✍ Scribed by Hou-Jun Yang; XiȧO-Ling Li; Yuan-Jiang Pan; Yao-Zu Chen

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
327 KB
Volume
27
Category
Article
ISSN
1076-5174

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✦ Synopsis

Chemical ionization (CI) of trans-and cis-stilbene and of fumaric and maleic acid, using dichlorocarbene as reagent, was studied. In the CI ion source (CH,), dichlorocarbene added stereospecifically to the double bond of the sample molecule to form the corresponding ion of the 1,l-dichloropropane derivative. From the different relative abundances of the characteristic fragment ions of these cyclopropanes, the geometric configuration of the original substituted olefins may be predicted.

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