申请人:INSTITUTE OF NUCLEAR ENERGY RESEARCH,
CHINESE ATOMIC ENERGY COUNCIL
公开号:EP0546233A1
公开(公告)日:1993-06-16
A new method for synthesizing 2-alkoxyisobutylisonitrile is provided in which isobutylene is used as the starting material. The haloalkoxylation of isobutylene in alcohol medium gives 2-alkoxyisobutylhalide which is then converted to 2-alkoxyisobutylamine. In the basic condition, the reaction of 2-alkoxyisobutylamine with chloroform produces 2-alkoxyisobutylisonitrile. The synthesis process contains three steps by which a higher yield is achieved. 2-Alkoxyisobutylisonitrile is labelled with technetium-99m by exchange labelling of stable tetrakis(2-alkoxyisobutylisonitrile)copper(l) complex. Tetrakis(2-alkoxyisobutylisonitrile)copper(l) complex can be prepared by the exchange of acetonitrile molecules in tetrakis(acetonitrile)copper(l) complex with isonitrile ligands.
提供了一种合成 2-烷氧基异丁基异腈的新方法,其中异丁烯被用作起始原料。异丁烯在醇介质中进行卤代烷氧基化反应生成 2-烷氧基异丁基卤化物,然后转化为 2-烷氧基异丁胺。在基本条件下,2-烷氧基异丁胺与氯仿反应生成 2-烷氧基异丁基异腈。合成过程包括三个步骤,通过这三个步骤可以获得更高的产率。通过交换标记稳定的四(2-烷氧基异丁基异腈)铜(l)络合物,用锝-99m 标记 2-烷氧基异丁基异腈。四(2-烷氧基异丁基异腈)铜(l)络合物可通过交换四(乙腈)铜(l)络合物中的乙腈分子与异腈配体来制备。