申请人:——
公开号:US20010008944A1
公开(公告)日:2001-07-19
The present invention relates to novel compounds of formula(1).
1
wherein: R
1
is hydrogen atom or lower alkyl group, X is bromine atom or chlorine atom; and which are usefull for the preparation of the cycloheptanoides such as cycloheptimidazole derivatives. The compound having formula (1) is obtained in a single pot by the reaction of a trialkylsilylether compound with a dihalocarbene which, in turn, is prepared from the reaction of chloroform or bromoform in the presence of base.
本发明涉及公式(1)的新化合物。其中:R1是氢原子或较低的烷基;X是溴原子或氯原子;它们可用于制备环庚烷类化合物,如环庚咪唑衍生物。公式(1)的化合物通过三烷基硅醚化合物与二卤代卡宾的反应在单一反应罐中获得,而二卤代卡宾则是由氯仿或溴仿在碱的存在下反应制备而成。