申请人:Ciba-Geigy Corporation
公开号:US03935224A1
公开(公告)日:1976-01-27
4H-pyrido[3,2-a]-1,3,2-dioxaphosphorin compounds of the formula ##SPC1## Wherein R.sub.1 represents C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.3 -C.sub.4 alkenyloxy, C.sub.3 -C.sub.4 alkinyloxy, C.sub.1 -C.sub.5 alkylthio, phenoxy, phenyl, amino, C.sub.1 -C.sub.5 alkylamino, (C.sub.1 -C.sub.5 alkyl).sub.2 amino or halogen, R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 alkyl and X represents oxygen or sulphur.
该公式化合物为4H-pyrido[3,2-a]-1,3,2-dioxaphosphorin,其中R1代表C1-C5烷基,C1-C5烷氧基,C3-C4烯氧基,C3-C4炔氧基,C1-C5烷硫基,苯氧基,苯基,氨基,C1-C5烷基氨基,(C1-C5烷基)2氨基或卤素,R2代表氢或C1-C5烷基,X代表氧或硫。