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Mass spectrometric study of thiocarbamoyl-substituted 2-aminothiazoles and 2-iminothiazolines. 1. Aliphatic derivatives

✍ Scribed by Ya. V. Rashkes; Yu. M. Mil'grom; R. F. Ambartsumova

Publisher
Springer US
Year
1989
Tongue
English
Weight
492 KB
Volume
25
Category
Article
ISSN
0009-3122

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✦ Synopsis

s, 5-H). Mass spectrum, m/z: 167 (M +, 21), 132 (M + -CI, i00), 105 (46), 79 (ii), 69 (14). Compound VIII, PMR spectrum: 4.58 ppm (s, CH2CI). Mass spectrum, m/z: 201 (M +, 20), 170 (15), 166 (M + -CI i00), 105 (50), 79 (16), 69 (14). Compound VI, PMR spectrum: 2.22 ppm (s, CH3); mass spectrum, m/z: 167 (M +, i00), 132 (M + -CI, 58), 123 (21), 106 (74), 105 (24), 79 (23), 71 (84), 70 (12), 69 (12). Chlorination of Ie with UV initiation gave similar results.

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## Abstract Electron ionization mass spectrometry was used for the structural characterization of substituted 2‐thiazolin‐4‐one derivatives in the gas phase. The compounds follow common fragmentation pathways, producing ions whose abundances are dependent on the chemical nature of the substituent a