## Abstract Preparation of the title compound, tracer substances required for the development of the fasciollide clorsulon, is described. The ring‐u‐^14^C variety was obtained in 42.2% yield overall from purchased [ring‐u‐^14^C]acetophenone.
Synthesis of carbon-14 and sulfur-35 labeled O-ethyl-S-phenyl-ethyl-phosphonodithioate
✍ Scribed by J. Kalbfeld; A. D. Gutman; D. A. Hermann
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- French
- Weight
- 162 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0022-2135
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📜 SIMILAR VOLUMES
## 0-Ethyl-S-phenyl-ethylphosphonodithioate ( 1 ) a broad spectrum soil insecticide (2) was unqormly labeled in the benzene ring with Carbon-14 to expand the residue and metabolism information (3' gained from previous labelings of this compound ( 4 ) .
labelled in the ethyl moiety and in the azepine ring with carbon-14 was prepared to facilitate residue and metabolism studies. The ethyl labeled compound was prepared in 86% yield and 99+% radiochemical purity. The azepine labeled material was prepared in 60% yield and 99+% radiochemical purity.
## Abstract O,O‐Vi‐ [1‐^14^C]‐ethyl S‐ [N‐ethoxycarbonyl‐N‐methylcarbamoylmethyl] phosphorothiolothionate has been prepared with a specific activity of 1.97 mCi mmol^−1^. The procedure involved the interaction of [1‐^14^C]‐ethanol with phosphorus pentasulphide in benzene, followed by conversion of
## Abstract Carbon‐13 and carbon‐14 labeled forms of the title compound have been prepared from the correspondingly labeled forms of 8‐chloro‐1‐methyl‐6‐phenyl‐4H‐__s__‐triazolo[4,3‐a][1,4]benzodiazepine (__3__)Alprazolam is the generic USAN name for this compound. . A modified and more convenient
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