可分离的碳环化合物环内含七个或七个以下的碳。
Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.
本论文主要研究了稀土氯化物催化的合成氮杂环化合物的反应，得到了新型的七元氮杂环膦酸酯和苯并咪唑衍生物。
The reactions towards synthesis of novel azaheterocyclic phosphonates and benzimidazoles using lanthanide chlorides as catalyst were studied in this thesis:1.
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