Process for the production of 1,3,4-thiadiazol-5(4H)-onyl
dithiophosphoric acid esters
    1.
    发明授权
    Process for the production of 1,3,4-thiadiazol-5(4H)-onyl dithiophosphoric acid esters 失效
    制备1,3,4-噻二唑-5(4H) - 基二硫代磷酸酯的方法

    公开(公告)号:US4035378A

    公开(公告)日:1977-07-12

    申请号:US627998

    申请日:1975-11-03

    摘要: 1,3,4-Thiadiazol-5-(4H)-onyl-(4)-methyl dithiophosphoric acid ester of the formula ##STR1## wherein each of R, R.sub.1 and R.sub.2 methyl or ethyl and Y represents oxygen or sulphur, are prepared by condensing a thiophosphate acid of the formula ##STR2## or an alkali metal or ammonium salt thereof, with a 1,3,4-thiadiazole of the formula ##STR3## with formaldehyde in an aqueous medium consisting essentially of 60-98 wt % of sulphuric acid, the amount of sulphuric acid is at least 0.7 mol per mol of free thiophosphoric acid, if free acid is used, and 1.7 mol per mol of thiophosphoric acid salt, if a salt is used. The temperature of the reaction mixture is maintained at 15.degree.-60.degree. C. The process is particularly useful in the preparation of O,O-dimethyl-S-[2-methoxy-1,3,4-thiadiazol-5(4H)-onyl-(4)-methyl]-dithiophosphate (methidathion).

    摘要翻译: 式(I)的1,3,4-噻二唑-5-(4H) - 基 - (4) - 甲基二硫代磷酸酯,其中R,R 1和R 2中的每一个是甲基或乙基,Y代表氧或硫 是通过将下式(IMAGE)的硫代磷酸或其碱金属或铵盐与式(III)的1,3,4-噻二唑与基本上由 60-98重量%的硫酸,如果使用游离酸,硫酸的量相对于每摩尔游离硫代磷酸为至少0.7摩尔,如果使用盐,硫酸的量为1.7摩尔/摩尔硫代磷酸盐。 反应混合物的温度保持在15°-60℃。该方法特别可用于制备O,O-二甲基-S- [2-甲氧基-1,3,4-噻二唑-5(4H) (4) - 甲基] - 磷酸碘(甲硫氨酸)。

    4H-Pyrido[3,2a]-1,3,2-dioxophosphorane derivatives
    2.
    发明授权
    4H-Pyrido[3,2a]-1,3,2-dioxophosphorane derivatives 失效
    4H-吡啶并[8,2,2'(9-1,3,2-二氧代磷杂环戊烷衍生物)

    公开(公告)号:US3935224A

    公开(公告)日:1976-01-27

    申请号:US302641

    申请日:1972-11-01

    申请人: Kurt Rufenacht

    发明人: Kurt Rufenacht

    CPC分类号: C07F9/58

    摘要: 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.

    摘要翻译: 4H-吡啶并[3,2-a] -1,3,2-二氧杂磷杂卟啉化合物,其中R 1表示C 1 -C 5烷基,C 1 -C 5烷氧基,C 3 -C 4烯氧基,C 3 -C 4烷氧基,C 1 -C 5烷硫基, 苯氧基,苯基,氨基,C 1 -C 5烷基氨基,(C 1 -C 5烷基)2氨基或卤素,R 2表示氢或C 1 -C 5烷基,X表示氧或硫。

    O,S-dialkyl- and O-alkyl-S-alkoxyalkyl-S-1,2,4-oxa-diazolyl-3-methylene
dithiophosphates
    4.
    发明授权
    O,S-dialkyl- and O-alkyl-S-alkoxyalkyl-S-1,2,4-oxa-diazolyl-3-methylene dithiophosphates 失效
    O,S-二烷基 - 和O-烷基-S-烷氧基烷基-S-1,2,4-氧杂 - 二唑基-3-亚甲基二硫代磷酸酯

    公开(公告)号:US4028377A

    公开(公告)日:1977-06-07

    申请号:US517359

    申请日:1974-10-23

    IPC分类号: A01N57/16 C07F9/653 C07F9/165

    CPC分类号: A01N57/16 C07F9/65318

    摘要: 1,2,4-Oxadiazoles, their manufacture and use as active ingredients in pesticides especially insecticides and acaricides. The compounds correspond to the formula ##STR1## wherein R.sub.1 represents hydrogen, unsubstituted alkyl, benzyl or phenyl, R.sub.2 represents methyl or ethyl, and R.sub.3 represents unsubstituted C.sub.1 -C.sub.7 alkyl optionally interrupted by oxygen or represents C.sub.3 -C.sub.4 alkenyl.

    摘要翻译: 1,2,4-恶二唑,其制造和用作农药,特别是杀虫剂和杀螨剂中的有效成分。 该化合物对应于下式:其中R 1表示氢,未取代的烷基,苄基或苯基,R 2表示甲基或乙基,R 3表示任选被氧中断或表示C 3 -C 4烯基的未取代的C 1 -C 7烷基。

    Certain pesticidal phosphorus containing amidines
    6.
    发明授权
    Certain pesticidal phosphorus containing amidines 失效
    某些农药含磷脒

    公开(公告)号:US3966921A

    公开(公告)日:1976-06-29

    申请号:US574799

    申请日:1975-05-05

    摘要: Compounds of the formula ##EQU1## wherein R.sub.1 represents phenyl, or phenyl mono- to trisubstituted by halogen, mono- or disubstituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkylthio, nitro, cyano or trifluoromethyl, or monosubstituted by C.sub.1 -C.sub.4 -carbalkoxy,R.sub.2 represents methyl, methoxy, ethyl, ethoxy or phenyl,R.sub.3 represents hydrogen or methyl,R.sub.4 and R.sub.5 represent methyl, ethyl, n-propyl, isopropyl or allyl,X and Y represent oxygen or sulphur, orR.sub.4 and R.sub.5 with the nitrogen atom to which they are bound form the morpholino, piperidino or pyrrolidino ring, orR.sub.3 with R.sub.4 or R.sub.5 forms a 5- or 6-membered saturated ring, whereby then the group R.sub.4 or R.sub.5 not participating in the ring formation represents methyl or ethyl,A process for their manufacture and their use for the control of pests, especially for the control of phytopathogenic nematodes, are disclosed.

    摘要翻译: 化学式XR 2 PARALLEL R4 ANGLE PN = CN ANGLE R1Y|R5 R3其中R1表示苯基,或被卤素单取代或三取代的苯基,被C1-C4-烷基,C1-C4-烷硫基,硝基, 氰基或三氟甲基,或被C1-C4-烷氧基单取代,R2代表甲基,甲氧基,乙基,乙氧基或苯基,R3代表氢或甲基,R4和R5代表甲基,乙基,正丙基,异丙基或烯丙基,X和Y 代表氧或硫,或者R 4和R 5与它们所连接的氮原子形成吗啉代,哌啶子基或吡咯烷子基环,或者R 3与R 4或R 5形成5或6元饱和环,其中R 4或 R5不参与环形成代表甲基或乙基,其制造方法及其用于控制​​污染物的用途,特别是用于控制生物病原体的生物体。