Mass spectrometry in structural and stereochemical problems. CXXXVI. Primary hydrogen isotope effects in the McLafferty rearrangement
β Scribed by MacLeod, John Keith.; Djerassi, Carl.
- Book ID
- 126407705
- Publisher
- American Chemical Society
- Year
- 1967
- Tongue
- English
- Weight
- 949 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
The mass spectra of aliphatic ketones are drastically altered following substitution of a trifluoromethyl entity adjacent to the carbonyl group (I1 and 111) or attachment to the y-carbon atom (V). Loss of the trifluoromethyl group by a-cleavage far exceeds the alternative elimination OF an alkyl rad
Following the demonstrations by Meyerson and coworkers4 and Rinehart et al 5 i.-' that the M-l ion in the mass spectrum of toluene is best represented OS a tmpylium structure, analogous ring expansion pathways have been proposed to rationalize data from l3 C-labeled compounds in the quinoline, indol