申请人:Sumitomo Chemical Company, Limited
公开号:US10005766B2
公开(公告)日:2018-06-26
A compound represented by formula (4) is produced by a step A of reacting a compound represented by formula (2):
wherein R1 represents an ethyl group or the like, R represents a halogen atom or the like, n represents 0, 1, 2, or 3, and M represents potassium or the like, with thionyl chloride to obtain a compound represented by formula (1):
a step B of reacting the compound represented by formula (1) with a compound represented by formula (5):
wherein A1 represents a nitrogen atom or ═CH—, R5 represents a trifluoromethyl group or the like, and m represents 1 or 2, to produce a compound represented by formula (3):
or an acid salt thereof; and a step C of reacting the compound represented by formula (3) or an acid salt thereof in the presence of acid at 100° C. to 180° C. to obtain the compound represented by formula (4):
由式 (2) 代表的化合物通过反应步骤 A 生成式 (4) 代表的化合物:
其中 R1 代表乙基或类似基团,R 代表卤原子或类似基团,n 代表 0、1、2 或 3,M 代表钾或类似基团)与亚硫酰氯反应,得到式(1)代表的化合物:
将式(1)代表的化合物与式(5)代表的化合物反应的步骤 B:
其中 A1 代表氮原子或 ═CH-,R5 代表三氟甲基或类似基团,m 代表 1 或 2,生成式 (3) 所代表的化合物:
或其酸盐;以及步骤 C,在酸存在下于 100°C 至 180°C 下反应式 (3) 所代表的化合物或其酸盐,以获得式 (4) 所代表的化合物: