Process for producing substituted aminoquinazolinone derivative, intermediate therefor, and pest control agent
申请人:Sanpei Osamu
公开号:US20070185142A1
公开(公告)日:2007-08-09
A process for producing a substituted aminoquinazolinone derivative represented by the formula (I), characterized by reducing a substituted iminoquinazolinone derivative represented by the formula (II) with hydrogen in the presence of a catalyst and either of a halogen compound and a sulfur compound; a substituted iminoquinazolinone derivative represented by the formula (II′), which is an intermediate in the production process; and a pest control agent containing the derivative of the formula (II′) or a salt thereof as an active ingredient and a method of using the same (in the formulae, R represents hydrogen, formyl, (C
1
-C
6
) alkyl, (C
1
-C
6
)alkoxy(C
1
-C
3
)alkyl, (C
1
-C
6
) alkylsulfonyl, optionally substituted phenylcarbonyl, etc.; R
1
represents an optionally substituted, 5- or 6-membered heterocycle having one to three heteroatoms selected among oxygen, sulfur, and nitrogen; R
2
represents hydrogen or (C
1
-C
3
) alkyl; X and X′ may be the same or different and each represents (C
1
-C
6
) haloalkyl, (C
1
-C
6
) haloalkoxy, etc.; n is an integer of 0 to 4; and n′ is an integer of 1 to 4).
一种生产代表式(I)的取代氨基喹唑啉酮衍生物的方法,其特征在于,在催化剂的存在下,使用氢气还原代表式(II)的取代亚氨基喹唑啉酮衍生物,并使用卤素化合物或硫化合物之一;代表式(II′)的取代亚氨基喹唑啉酮衍生物是生产过程中的中间体;以及含有代表式(II′)或其盐为活性成分的杀虫剂及其使用方法。(在上述式中,R代表氢、甲酰基、(C1-C6)烷基、(C1-C6)烷氧基(C1-C3)烷基、(C1-C6)烷基磺酰基、可选取代的苯基羰基等;R1代表可选取代的5-或6-成员杂环,其中包含1-3个在氧、硫和氮中选择的杂原子;R2代表氢或(C1-C3)烷基;X和X′可以相同也可以不同,每个代表(C1-C6)卤代烷基,(C1-C6)卤代烷氧基等;n为0到4的整数;n′为1到4的整数)。