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    • 1. 发明授权
    • Process for the preparation of pyrimidines
    • 制备嘧啶的方法
    • US4824949A
    • 1989-04-25
    • US132483
    • 1987-12-14
    • Stephen LachheinLothar Willms
    • Stephen LachheinLothar Willms
    • C07D239/52C07D239/56C07D239/58C07D239/47
    • C07D239/56C07D239/52C07D239/58
    • Process for the preparation of pyrimidines Pyrimidines of the formula I ##STR1## in which X and Y, independently of one another, denote oxygen or sulfur, R.sup.1 and R.sup.2, independently of one another, denote (C.sub.1 --C.sub.4) alkyl, (C.sub.1 --C.sub.4 -alkoxy)-C.sub.1 --C.sub.2 -alkyl or halo-C.sub.1 --C.sub.4 -alkyl, and R.sup.3 denotes C.sub.1 --C.sub.4 -alkyl, phenyl or phenoxy which may both be substituted by one, two or three radicals from the series comprising halogen, C.sub.1 --C.sub.4 -alkoxy and C.sub.1 --C.sub.4 -alkyl radicals, halo-C.sub.1 --C.sub.4 -alkyl or C.sub.1 --C.sub.4 -alkoxy, are obtained in a process in which propanediimidates of the formula II ##STR2## or salt thereof, are reacted with N-cyanoamides of the formula NC--NR.sup.4 --CO--R.sup.3 in which R.sup.4 denotes hydrogen or a cation, in an inert solvent. The compounds of the formula I are suitable as intermediates for the preparation of herbicidal sulfonylureas.
    • 制备嘧啶的方法式I的嘧啶其中X和Y彼此独立地表示氧或硫,R 1和R 2彼此独立地表示(C 1 -C 4)烷基,(C 1 -C 4)烷基 -C 1-4 - 烷氧基)-C 1 -C 2 - 烷基或卤代C 1 -C 4 - 烷基,R 3表示可以被一个,两个或三个基团取代的C 1 -C 4烷基,苯基或苯氧基,所述基团包括卤素, C 1 -C 4 - 烷氧基和C 1 -C 4 - 烷基,卤代-C 1 -C 4 - 烷基或C 1 -C 4 - 烷氧基是在下式的过程中获得的:其中式II II或其盐的丙二酰亚胺酯或其盐与 在惰性溶剂中,其中R 4表示氢或阳离子的式NC-NR4-CO-R3的N-氰酰胺。 式I的化合物适用作制备除草磺酰脲类的中间体。
    • 2. 发明授权
    • Process for the preparation of N-alkylsulfonylaminosulfonylureas
    • 制备N-烷基磺酰氨基脲的方法
    • US5157121A
    • 1992-10-20
    • US731460
    • 1991-07-17
    • Stephen LachheinLothar Willms
    • Stephen LachheinLothar Willms
    • A01N43/54A01N47/36C07D239/42C07D239/47C07D239/48C07D239/52C07D521/00
    • C07D521/00
    • Known herbicides of the formula (I) ##STR1## in which R.sup.1 is alkyl, alkenyl or alkynyl, which are optionally substituted by halogen, alkoxy or alkoxycarbonyl,R.sup.2 is H, alkyl, alkenyl, alkynyl or cycloalkyl,R.sup.3 and R.sup.4 are H or alkyl,R.sup.5 and R.sup.6 are H, alkyl or alkoxy, each of which can be substituted by halogen, alkoxy or alkylthio, or are halogen, alkylthio, alkylamino or dialkylamino,or, if R.sup.2 or R.sup.3 is H, their salts with bases, can be obtained when compounds of the formula IIR.sup.1 --SO.sub.2 --NR.sup.2 --SO.sub.2 --NR.sup.3 --CO--OR.sup.7(II)in whichR.sup.1, R.sup.2 and R.sup.3 are as defined above,are reacted with compounds of the formula III ##STR2## in which R.sup.4, R.sup.5 and R.sup.6 are as defined above andR.sup.7 is alkyl, haloalkyl or optionally substituted phenyl,in an inert organic solvent, to give the compounds of the formula I.
    • 式(I)的已知除草剂其中R 1为任选被卤素,烷氧基或烷氧基羰基取代的烷基,烯基或炔基,R 2为H,烷基,烯基,炔基或环烷基,R 3和R 4 卤素,烷硫基,烷基氨基或二烷基氨基,或者如果R2或R3是H,则它们的盐与 当其中R 1,R 2和R 3如上定义的式IIR 1 -SO 2 -NR 2 -SO 2 -NR 3 -CO-OR 7(II)的化合物与式III化合物反应时,可以得到碱。 (III)其中R4,R5和R6如上定义,R7是烷基,卤代烷基或任选取代的苯基,在惰性有机溶剂中,得到式I化合物。
    • 3. 发明授权
    • Process for the preparation of aminopyrimidines
    • 氨基嘧啶的制备方法
    • US5070201A
    • 1991-12-03
    • US601224
    • 1990-10-22
    • Stephen LachheinLothar Willms
    • Stephen LachheinLothar Willms
    • C01C3/16C07D239/52C07D239/56C07D239/58
    • C07D239/56C07D239/52C07D239/58
    • Aminopyrimidines of the formula (I) ##STR1## in which X and Y are in each case oxygen or sulfur andR.sup.1, R.sup.2 are independently of one another (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.2)alkyl or halo(C.sub.1 -C.sub.4)alkyl,are intermediates for the preparation of herbicides from the sulfonylurea group. According to the invention, compounds of the formula I can be prepared in a one-step process without pH control, which comprises the reaction of a propanediimidate of the formulaR.sup.1 X--C(.dbd.NH)--CH.sub.2 --C(.dbd.NH)--YR.sup.2or its salt with an alkali metal or alkaline earth metal salt of the cyanamide, in which a solution of the compounds in an alcohol of the formula R.sup.4 --OH, in which R.sup.4 is (C.sub.1 -C.sub.6)alkyl, or, simultaneously, separate solutions of the compounds in each case in an alcohol R.sup.4 --OH are added to an inert organic solvent which is higher-boiling in comparison to the alcohol at temperatures above 100.degree. C. with simultaneous removal of the alcohol by distillation.
    • 其中X和Y各自为氧或硫,R1,R2彼此独立地为(C1-C4)烷基,(C1-C4)烷氧基 - (C1-C2)烷基) )烷基或卤代(C 1 -C 4)烷基是用于从磺酰脲基团制备除草剂的中间体。 根据本发明,式I化合物可以在没有pH控制的一步法中制备,其包括式R1X-C(= NH)-CH2-C(= NH)-YR2的丙二酰亚胺酸酯 或其盐与氨基氰的碱金属或碱土金属盐,其中化合物在式R 4 -OH的醇中的溶液,其中R 4是(C 1 -C 6)烷基,或同时分离溶液 在各种情况下,在醇R 4 -OH中的化合物加入惰性有机溶剂中,与醇在高于100℃的温度下相比,沸点更高,同时通过蒸馏除去醇。
    • 4. 发明授权
    • Process for the preparation of N-alkylsulfonylaminosulfonylureas
    • 制备N-烷基磺酰氨基脲的方法
    • US5155222A
    • 1992-10-13
    • US731518
    • 1991-07-17
    • Stephen LachheinLothar Willms
    • Stephen LachheinLothar Willms
    • A01N47/36A01N43/54C07D239/42C07D239/47C07D239/48C07D239/52C07D521/00
    • C07D521/00
    • Known herbicides of the formula (I) ##STR1## in which R.sup.1 is alkyl, alkenyl or alkynyl, which are optionally substituted by halogen, alkoxy or alkoxycarbonyl,R.sup.2 is H, alkyl, alkenyl, alkynyl or cycloalkyl,R.sup.3 and R.sup.4 are H or alkyl,R.sup.5 and R.sup.6 are H, alkyl or alkoxy, each of which can be substituted by halogen, alkoxy or alkylthio, or are halogen, alkylthio, alkylamino or dialkylamino,or, if R.sup.2 or R.sup.3 is H, their salts with bases, can be obtained when compounds of the formula IIR.sup.1 -SO.sub.2 -NR.sup.2 -SO.sub.2 -NHR.sup.3 (II)in whichR.sup.1, R.sup.2 and R.sup.3 are as defined above,are reacted with compounds of the formula III ##STR2## in which R.sup.4, R.sup.5 and R.sup.6 are as defined above andR.sup.7 is alkyl, haloalkyl or optionally substituted phenyl,in an inert organic solvent, to give the compounds of the formula I.
    • 式(I)的已知除草剂其中R 1为任选被卤素,烷氧基或烷氧基羰基取代的烷基,烯基或炔基,R 2为H,烷基,烯基,炔基或环烷基,R 3和R 4 卤素,烷硫基,烷基氨基或二烷基氨基,或者如果R2或R3是H,则它们的盐与 当其中R 1,R 2和R 3如上所定义的式IIR 1 -SO 2 -NR 2 -SO 2 -NHR 3(II)的化合物与式III的化合物(III)反应时,可以获得碱, 其中R4,R5和R6如上定义,R7是烷基,卤代烷基或任选取代的苯基,在惰性有机溶剂中,得到式I化合物。
    • 7. 发明授权
    • Process for the preparation of arylalkylmethylsilanes
    • 制备芳基甲基硅氧烷的方法
    • US5124470A
    • 1992-06-23
    • US732792
    • 1991-07-19
    • Stephen Lachhein
    • Stephen Lachhein
    • C07F7/08C07F7/12
    • C07F7/12C07F7/0896
    • The present invention relates to a process for the preparation of arylalkylmethylsilanes of the formula I ##STR1## where X is CH.dbd.CH, N.dbd.CH, CH.dbd.N or S,R.sup.1 and R.sup.2 independently of one another are H, halogen, (C.sub.1 to C.sub.4)alkyl, (C.sub.1 to C.sub.4)alkoxy, (C.sub.1 to C.sub.4)alkylthio, (C.sub.1 to C.sub.4)haloalkyl, (C.sub.1 to C.sub.4)haloalkoxy or (C.sub.1 to C.sub.4)haloalkylthio,R.sup.3 is (C.sub.1 to C.sub.6)alkyl andm and n are 0, 1 or 2,which comprises reacting dichloromethylsilane II ##STR2## first with an arylmagnesium halide of the formula III ##STR3## where R.sup.1, R.sup.2, m, n and X are as defined in Formula I and Hal is halogen, at temperatures of from -78.degree. to 0.degree. C., and subsequently with an alkylmagnesium halide of the formula IVR.sup.3 --Mg Hal (IV),where R.sup.3 is as defined in formula I and Hal is halogen, if appropriate in the presence of a solvent.
    • 本发明涉及制备式I(I)的芳基烷基甲基硅烷的方法,其中X为CH = CH,N = CH,CH = N或S,R 1和R 2彼此独立地为H,卤素 ,(C1至C4)烷基,(C1至C4)烷氧基,(C1至C4)烷硫基,(C1至C4)卤代烷基,(C1至C4)卤代烷氧基或(C1至C4)卤代烷硫基,R3为(C1至C6) 烷基和m和n为0,1或2,其包括首先使二氯甲基硅烷II(II)与式III的芳基卤化镁(III)反应,其中R 1,R 2,m,n和X为 在式I中定义,Hal为卤素,在-78℃至0℃的温度下,随后与式IV的R3-Mg Hal(IV)的烷基镁卤化物反应,其中R 3如式I所定义,Hal为 如果合适的话,在溶剂的存在下是卤素。
    • 9. 发明授权
    • Process for the preparation of aminopyrimidines
    • 氨基嘧啶的制备方法
    • US4831138A
    • 1989-05-16
    • US132484
    • 1987-12-14
    • Stephen Lachhein
    • Stephen Lachhein
    • C07D239/54C07D239/52C07D239/56C07D239/58
    • C07D239/56C07D239/52C07D239/58
    • Process for the preparation of aminopyrimidinesPyrimidines of the formula I ##STR1## in which X and Y denote oxygen or sulfur and R.sup.1 and R.sup.2 denote C.sub.1 -C.sub.4 -alkyl, (C.sub.1 -C.sub.4 -alkoxy)-C.sub.1 -C.sub.2 -alkyl or halo-C.sub.1 -C.sub.4 -alkyl, are obtained through reaction of propanediimidates of the formula II ##STR2## or salts thereof with cyanurates of the formula R.sup.3 --O--CN in which R.sup.3 denotes C.sub.1 -C.sub.4 -alkyl, phenyl, phenyl which is substituted by 1, 2 or 3 radicals from the series comprising halogen, C.sub.1 -C.sub.4 -alkoxy and C.sub.1 -C.sub.4 -alkyl radicals, .alpha.- or .beta.-naphthyl or halo-C.sub.1 -C.sub.4 -alkyl, in an organic solvent which is inert under the reaction conditions. The one-step process permits efficient preparation of the compounds of the formula I, which can be used as intermediates for the preparation of herbicidal sulfonylureas.
    • 制备氨基嘧啶的方法式I的嘧啶其中X和Y表示氧或硫,R 1和R 2表示C 1 -C 4 - 烷基,(C 1 -C 4 - 烷氧基)-C 1 -C 2 - 烷基或卤代 C 1 -C 4 - 烷基是通过式II II的丙二酰亚胺酯或其盐与式R3-O-CN的氰尿酸酯反应得到的,其中R 3表示C 1 -C 4 - 烷基,苯基,被取代的苯基 包含卤素,C 1 -C 4 - 烷氧基和C 1 -C 4 - 烷基,α或β-萘基或卤代-C 1 -C 4 - 烷基的一系列基团在有机溶剂中反应,该有机溶剂在 反应条件。 一步法可有效制备式I化合物,其可用作制备除草磺酰脲的中间体。
    • 10. 发明授权
    • Process for the preparation of phosphorus-containing cyanohydrin
derivatives
    • 含磷氰醇衍生物的制备方法
    • US4599207A
    • 1986-07-08
    • US614846
    • 1984-05-29
    • Stephen LachheinHilmar Mildenberger
    • Stephen LachheinHilmar Mildenberger
    • C07F9/32
    • C07F9/3211
    • The invention relates to a new process for the preparation of compounds of the formula (I) ##STR1## in which R.sub.1 denotes alkyl and R.sub.2 denotes H, acetyl or propionyl, by addition of compounds of the formula II ##STR2## onto compounds of the formula III, using radical-formers, the radical-formers being used being compounds of the general formula IV ##STR3## in which R.sub.3 denotes alkyl or phenyl and R.sub.4 denotes alkyl, the reaction being carried out at temperatures in the range from 50.degree. to 100.degree. C., and, for the preparation of compounds of the formula I where R.sub.2 is H, then splitting off the radical R.sub.2.sup.'. Using this process, the compounds of the formula I are obtained in high yield and particular purity.
    • 本发明涉及一种制备式(I)化合物的新方法,其中R 1表示烷基,R 2表示H,乙酰基或丙酰基,通过将式II的化合物加到 使用自由基形成剂的式III化合物使用的自由基形成剂是通式IV(IV)的化合物,其中R 3表示烷基或苯基,R 4表示烷基,反应在 在50℃至100℃的范围内,并且为了制备其中R 2为H的式I化合物,然后将R2'分解。 使用该方法,以高产率和特别纯度获得式I化合物。