Provided is a method for the preparation of a deuterated or tritiated aromatic compound via deuteration or tritiation of an aromatic starting compound which comprises an aromatic ring or a fused aromatic ring system which may be carbocyclic or hetercyclic and which carries at least one hydrogen atom directly bonded to a carbon ring atom of an aromatic ring, said method comprising:
a) providing a liquid composition wherein the aromatic starting compound is dissolved or dispersed in a deuterated or tritiated solvent which is not water, or in a solvent system comprising at least one deuterated or tritiated solvent which is not water; and
b) replacing at least one hydrogen atom directly bonded to a carbon ring atom of an aromatic ring comprised by the aromatic starting compound with deuterium or tritium via the transfer of at least one deuterium of tritium atom from the deuterated or tritiated solvent to the aromatic starting compound dissolved or dispersed in the liquid composition in the presence of an acid,
to convert the aromatic starting compound to a deuterated or tritiated aromatic compound which comprises an aromatic ring or a fused aromatic ring system which may be carbocyclic or hetercyclic and which carries at least one deuterium or tritium atom directly bonded to a carbon ring atom of an aromatic ring.
本发明提供了一种通过对芳香族起始化合物进行氚化或氚化来制备氚化或三氚化芳香族化合物的方法,所述芳香族起始化合物包括一个芳香环或一个可为碳环或杂环的融合芳香环系统,且至少携带一个与芳香环的碳环原子直接键合的氢原子,所述方法包括
a) 提供液体组合物,其中芳香族起始化合物溶解或分散在非
水的氚代或三氚代溶剂中,或溶解或分散在包含至少一种非
水的氚代或三氚代溶剂的溶剂体系中;以及
b) 在酸存在的情况下,通过将至少一个
氘原子或氚原子从氚化或氚化溶剂转移到溶解或分散在液体组合物中的芳香族起始化合物,用
氘原子或氚原子取代与芳香族起始化合物所包含的芳香环的碳环原子直接结合的至少一个氢原子、
将芳香族起始化合物转化为氚化或氚化芳香族化合物,该芳香族化合物包含一个芳香环或一个融合芳香环系统,该芳香环系统可以是碳环或杂环,并携带至少一个直接键合到芳香环碳环原子上的
氘或氚原子。