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Mass spectra of trimethylsilyl ethers of some Δ5-3β-hydroxy C 19 steroids

✍ Scribed by C. J. W. Brooks; D. J. Harvey; B. S. Middleditch; P. Vouros

Book ID
102964310
Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
894 KB
Volume
7
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

The mass spectra (20 eV electron energy) of a wide range of %Δ^5^‐3β‐hydroxy C~19~ steroid TMS ethers have been examined with the aid of high‐resolution mass measurements, together with deuterium and oxygen‐18 labelling data. The validity of many previously proposed fragmentation modes has been confirmed. A number of ions regarded as diagnostic have been shown to be less specific than had been formerly supposed. Several novel fragmentations have been observed and investigated.

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