## Abstract The synthesis of tetramethyltetraselenafulvalene (4,4′,5,5′‐tetramethyl Δ^2,2′^‐bis‐1,3‐diselenole) doubly labelled with carbon‐13 in the 2 and 2′‐positions is described. Copyright © 2001 John Wiley & Sons, Ltd.
Synthesis of 13C-labelled cinnamonitrile
✍ Scribed by Elizabeth M. Zippi; Evan Kamperman
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- French
- Weight
- 65 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0022-2135
- DOI
- 10.1002/jlcr.535
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✦ Synopsis
Abstract
^13^C‐labelled cinnamonitrile, a compound that possesses both the aromatic functionality of styrene and the nitrile functionality of acrylonitrile has been synthesized in one step using β‐bromostyrene and potassium [^13^C]cyanide. The preparation of a target material using ^13^C ‐labelled cinnamonitrile may provide a cost‐effective method for producing nitrogen‐13 via proton irradiation for Positron Emission Tomography. Copyright © 2002 John Wiley & Sons, Ltd.
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## Abstract ^13^C‐ and ^14^C‐uniformly labelled catechol was synthesized from phenol in three steps. Phenol was derivatized with 2‐chloro‐5‐nitrobenzophenone in THF containing NaH, followed by __ortho__‐hydroxylation with 35% aqueous H~2~O~2~ in sulphuric acid/glacial acetic acid solution, and by c
The syntheses of '%-ring labeled levamisole ([-)-2,3,5,6-tetrahydr0-6-phenyl[~'C-UL]imidazo(Z, 1b]thiole) from acetophenone-ring-UL-l'C in 5 steps plus resolution with a 7.5% overall yield, and %,-ring labeled tetramisole ([i]-2,3,5,6-tetrahydro-6-phenyif3 S ]imidaz0[2,?-bjthiazole) from benzene-'%,
## Abstract This report describes the synthesis of the ^13^C‐enriched and ^14^C‐labelled title compound starting from isotopically labelled isovaleraldehyde.