申请人:ISHIHARA SANGYO KAISHA, LTD.
公开号:US20150119586A1
公开(公告)日:2015-04-30
To provide an industrial method for producing a substituted benzoic acid compound useful as an intermediate of pharmaceutical and agricultural chemicals with high purity and high yield.
A compound represented by the formula (II):
(wherein Q is a 5- or 6-membered saturated heterocyclic group (the heterocyclic group may be substituted by alkyl) containing one or two of at least one type of hetero atom selected from the group consisting of an oxygen atom and a sulfur atom, or dialkoxymethyl, T is trifluoromethyl, nitro, cyano, —SOA
1
, —SO
2
A
1
, —PO(OA
1
)(OA
2
), —COA
1
, —CO
2
A
1
or —CONA
1
A
2
, each of A
1
and A
2
which are independent of each other, is a hydrogen atom, alkyl or haloalkyl, X is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, dialkylaminosulfonyl, di(haloalkyl)aminosulfonyl, nitro or cyano, Y is a chlorine atom, a bromine atom or an iodine atom, and n is an integer of from 1 to 6), carbon monoxide and a compound represented by the formula R—OH (wherein R is alkyl) are reacted, followed by hydrolysis to obtain a compound represented by the formula (I):
wherein Q, T, X and n are as defined above.
提供一种工业方法,用于制备高纯度和高收率的取代苯甲酸化合物,该化合物可作为制药和农业化学品的中间体。化合物的结构式为(II):
(其中Q是一个5-或6-成员的饱和杂环基团(杂环基团可以被烷基取代),其中含有至少一种来自氧原子和硫原子的杂原子,或二烷氧甲基;T是三氟甲基、硝基、氰基、—SOA1、—SO2A1、—PO(OA1)(OA2)、—COA1、—CO2A1或—CONA1A2,其中每个A1和A2是独立的,是氢原子、烷基或卤代烷基;X是卤素、烷基、卤代烷基、烷氧基、卤代烷氧基、烷硫基、卤代烷硫基、烷基磺酰基、卤代烷基磺酰基、烷基磺酸基、卤代烷基磺酸基、二烷基氨基磺酰基、二(卤代烷基)氨基磺酰基、硝基或氰基;Y是氯原子、溴原子或碘原子;n是1到6的整数。)
将化合物R-OH(其中R是烷基)与一氧化碳反应,然后进行水解,以获得化合物(I):
(其中Q、T、X和n的定义如上述。)