The preparation of 1 7 0 -and 180-labelled hypophosphate by oxidation of diphosphite (P2-P4 acid) with iodine-water is described. The 162 MHz NMR 31P(18O) isotope shift of 1 8 0 -l a b e l l e d hypophosphate is 2.42 Hz (0.0149 ppm), the relatively large value compared to l\*O-pyrophosphate, 1.73 Hz
Synthesis and spectroscopic characterisation of 3-chloroperbenzoic acid-17O,18O, nitrosobenzene-17O,18O and nitrosobenzene-15N
✍ Scribed by Christine Bleasdale; Martin K. Ellis; Peter B. Farmer; Bernard T. Golding; Kevin F. Handley; Peter Jones; William McFarlane
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- French
- Weight
- 362 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
3‐Chloroperbenzoic acid‐^17^O,^18^O was prepared from 3‐chlorobenzoyl chloride and hydrogen peroxide‐^17^O,^18^O (obtained by subjecting water‐^17^O,^18^O. Nitrobenzene‐^15^N was reduced to aniline‐^15^N, which was oxidised by 3‐chloroperbenzoic acid to nitrosobenzene‐^15^N. ^15^N and ^17^O NMR data are given for the corresponding labelled nitrosobenzene.
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Synthesis of 0-, mand p-Deuterio-, ["N]and mono[180]Nitrobenzene