The electron impact and chemical ionization mass spectra of several cyclopropyl (cyclopropenyl) silanes containing an ester (ether) group on the cyclopropyl ring has been studied. Trialkylalkoxysilane or disiloxane elimination from the molecular ion was found to be a main common fragmentation route. Surprisingly; this was more significant for the trans than for the cis isomers. This inverse stereochemical effect is explained in terms of a competitive alkyl elimination from the silicon atom, which involves neighbouring group participation for the cis isomers.
|Number of pages||4|
|Journal||International Journal of Mass Spectrometry and Ion Physics|
|Publication status||Published - Feb 1983|