A method for preparing 1H-1,2,4-triazol-5-YL acetic compounds, and the novel 3-(4-tert-butylphenyl)-1H,2,4-triazol-5-yl acetic acid
申请人:Fuji Photo Film Co., Ltd.
公开号:EP0805150A2
公开(公告)日:1997-11-05
A method for preparing a 1H-1,2,4-triazol-5-yl acetic acid compound of formula (4), whereby a compound of formula (1), wherein R1 represents an alkyl group or aryl group, is reacted, with a compound of formula (2), wherein R2 represents an alkyl group, R3 represents an alkyl group or aryl group, A represents an acid substance, and n is 0, 0.5 or 1, in the presence of water, a water-soluble organic solvent, and NaOH or CH3COOM, in which latter M represents an alkali metal, to produce a compound represented by the below-given formula (3), wherein R1 and R2 have the same meanings as those in formulas (1) and (2), and then adding M2CO3, wherein M has the same meaning as defined above, the solution is heated to obtain the compound of formula (4).
The compound of formula (4) wherein R1 is 4-tert-butylphenyl is new and can be used for the production of photographic couplers, pharmaceutical or agricultural compounds.
一种制备式(4)1H-1,2,4-三唑-5-基乙酸化合物的方法,其中式(1)化合物,其中 R1 代表烷基或芳基,与式(2)化合物反应,其中 R2 代表烷基,R3 代表烷基或芳基,A 代表酸性物质,n 为 0、0.5 或 1,在水、水溶性有机溶剂和 NaOH 或 CH3COOM(后者中 M 代表碱金属)存在下,生成下式(3)所代表的化合物,其中 R1 和 R2 的含义与式(1)和(2)中的含义相同,然后加入 M2CO3(其中 M 的含义与上述定义相同),加热该溶液,得到式(4)化合物。
其中 R1 为 4-叔丁基苯基的式(4)化合物是一种新化合物,可用于生产照相耦合剂、药物或农用化合物。