申请人:Nolan Steven P.
公开号:US20090069569A1
公开(公告)日:2009-03-12
This invention provides a process which comprises contacting, in a reaction zone, at least one organic azide, at least one alkyne, and at least one N-heterocyclic carbene copper compound in which the ligands are either (i) a halide and an N-heterocyclic carbene or (ii) two N-heterocyclic carbenes and a BF
4
−
or PF
6
−
anion, to form a 1,2,3-triazole in which at least the 1 and 4 positions each has a substituent. The N-heterocyclic carbene either an imidazol-2-ylidene in which the 1 and the 3 positions each has a substituent which has at least one carbon atom, or a 4,5-dihydro-imidazol-2-ylidene in which the 1 and the 3 positions each has a substituent which has at least one carbon atom.
这项发明提供了一种方法,其中包括在反应区域中接触至少一种有机叠氮化合物、至少一种炔烃以及至少一种N-杂环卡宾铜化合物,其中配体可以是(i)一种卤素和一种N-杂环卡宾,或者(ii)两种N-杂环卡宾和一个BF4−或PF6−阴离子,以形成一种1,2,3-三唑,其中至少1和4位置各具有一个取代基。N-杂环卡宾可以是1,3位置各具有至少一个碳原子的咪唑-2-基卡宾,或者是1,3位置各具有至少一个碳原子的4,5-二氢咪唑-2-基卡宾。