Synthesis of
<sup>13</sup>
C‐labelled ω‐hydroxy carboxylic acids of the general formula HO
<sub>2</sub>
<sup>13</sup>
C‐(CH
<sub>2</sub>
)
<sub>
<i>n</i>
</sub>
‐CH
<sub>2</sub>
OH or HO
<sub>2</sub>
C‐(CH
<sub>2</sub>
)
<sub>
<i>n</i>
</sub>
‐
<sup>13</sup>
CH
<sub>2</sub>
OH (
<i>n</i>
= 12, 16, 20, 28)
作者:Carina Schink、Sandra Spielvogel、Wolfgang Imhof
DOI:10.1002/jlcr.3931
日期:2021.8
target and due to economic considerations. 13C labels in general were introduced by nucleophilic substitution of a suitable leaving group with labelled potassium cyanide and subsequent hydrolysis of the nitriles to produce the corresponding labelled carboxy functions, which may also be reduced to give the labelled primary alcohol group. All new compounds are characterized by GC/MS, IR and NMR methods
13 C-标记的 ω-羟基羧酸 HO 2 13 C-(CH 2 ) n -CH 2 OH 或 HO 2 C-(CH 2 ) n - 13 CH 2 OH ( n = 12, 16, 20, 28)已经合成了在羧基或在烃链末端的伯醇官能团处选择性引入的13 C标记。根据标签的位置、各个合成目标的链长以及出于经济考虑,必须采用不同的合成策略。13C标记通常通过用标记的氰化钾亲核取代合适的离去基团并随后水解腈以产生相应的标记的羧基官能团来引入,该羧基官能团也可以被还原以得到标记的伯醇基团。所有新化合物均通过 GC/MS、IR 和 NMR 方法以及元素分析进行了表征。