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The synthesis of aliphatic and aromatic hydrocarbons containing methyl groups labelled with 11C

✍ Scribed by B. Långstro̊m; S. Sjöberg

Publisher
John Wiley and Sons
Year
1981
Tongue
French
Weight
391 KB
Volume
18
Category
Article
ISSN
0022-2135

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✦ Synopsis

Abstract

The synthesis of [1‐^11^C]pentane, [1‐^11^C]nonane, [1‐^11^C]‐ undecane, 2‐[^11^ C]methyl‐naphthalene and [^11^C]methyl‐benzene (toluene) are reported. The hydrocarbons were prepared by the coupling reaction between [^11^C]methyl iodide and the appropriate lithium organocuprate. Toluene was also labelled by the coupling reaction between phenyllithium and [^11^C]methyl iodide. The reactions were carried out in ether giving the ^11^C‐labelled hydrocarbons in radiochemical yields < 90% with short reaction times (3‐13 min). The overall synthetic time from [^11^C]carbon dioxide was 9–19 min.

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