## Abstract Five compounds of a group of 2‐(arylimino)‐imidazolidines, among them Clonidine (St 155), have been labeled with ^14^ in the following manner: Potassium cyanide‐[^14^C] was converted to potassium thiocyanate‐[^14^C] and subsequently to the N′‐phenylthiourea using benzoyl chloride and th
Regioselective synthesis of unsymmetrical deuterium labelled hydrazines and azoxy compounds
✍ Scribed by Curt S. Cooper; Robert J. Weinkam
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- French
- Weight
- 454 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
A method f o r t h e p r e p a r a t i o n o f deuterium l a b e l l e d unsymm e t r i c a l hydrazines was developed. This method was used t o prepare l-benzyl-2-methyl-*H1-hydrazine hydrobromide and l-benzyl-zH~-2-methylhydrazine hydrobromide, analogs o f t h e cancer chemotheraputic agent procarbazine. These compounds were then used t o prepare t h e corresponding l a b e l l e d benzyl-(0") and ("0)-azoxymethane isomers. A method was developed whereby t h e deuterium l a b e l l e d azoxy isomers were separated by reversed phase semi-preparative HPLC.
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## Abstract The Pd/C‐catalyzed H~2~–D~2~ exchange reaction using a H~2~–D~2~O combination provided a general, efficient and environmentally friendly route for the preparation of deuterium gas (D~2~). H~2~ sealed in a reaction flask was converted into nearly pure D~2~, which could be used for the Pd
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v