Process for the preparation of imidazolones
    3.
    发明授权
    Process for the preparation of imidazolones 有权
    咪唑啉酮的制备方法

    公开(公告)号:US6162923A

    公开(公告)日:2000-12-19

    申请号:US463433

    申请日:2000-04-26

    IPC分类号: C07D235/02

    CPC分类号: C07D235/02

    摘要: The present invention relates to a process for the preparation of a compound of general formula (I), ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group of 1-6 carbon atoms, and their salts, wherein the compound of formula (II): ##STR2## is reacted with a compound of formula (III): ##STR3## wherein R represents an alkyl group of 1-4 carbon atoms and R.sup.1 is the same as defined above, by heating their neutral pH mixtures at the boiling temperature of the mixture, and the resulting compound of general formula (IV): ##STR4## wherein R and R.sup.1 are the same as defined above, is cyclized into the compound of general formula (I) by further elevating the temperature of the neutral mixture, and if desired, the compounds of general formula (I) are transformed into their salts, or the compounds of general formula (I) are liberated from their salts.

    摘要翻译: PCT No.PCT / HU98 / 00065 Sec。 371日期:2000年04月26日 102(e)日期2000年4月26日PCT提交1998年7月22日PCT公布。 出版物WO99 /​​ 05118 日期1999年2月4日本发明涉及制备通式(I)化合物的方法,其中R1表示氢原子或1-6个碳原子的烷基,及其盐,其中化合物 式(II):与式(III)化合物反应:其中R表示1-4个碳原子的烷基且R1与上述定义相同,通过在混合物的沸点温度下加热其中性pH混合物 ,并且通过进一步提高中性混合物的温度将所得到的通式(IV)化合物(其中R和R 1与上述定义相同)环化成通式(I)的化合物,如果需要,化合物 通式(I)的化合物转化为它们的盐,或者通式(I)的化合物从其盐中释放出来。

    Process for the preparation of cypermethrine isomers
    4.
    发明授权
    Process for the preparation of cypermethrine isomers 失效
    制备CYPERMETHRINE异构体的方法

    公开(公告)号:US5153349A

    公开(公告)日:1992-10-06

    申请号:US601767

    申请日:1990-10-19

    IPC分类号: A01N53/00 C07C255/14

    CPC分类号: A01N53/00

    摘要: The invention relates to a process for the preparation of such isomer mixtures of cypermethrine of the Formula (I) ##STR1## wherein carbon atoms indicated by 1, 3 and .alpha. stand for a chiral carbon atom and the wavy line indicates cis or trans configuration related to the cyclopropane ring--which contains out of the theoretically possible 8-isomers of cypermethrine at least 95% of 1RtransS and 1StransR (Ib) isomer pair or only a mixture of 1RcisC and 1ScisR (Ia) and the isomer pair (Ib) of the ratio (Ia):(Ib)=55:45-25:75 by asymmetric transformation of second order performed in the presence of an amine base and solvent from a starting cypermethrine isomer mixture which contains next to the isomer pair (Ib) cis and other trans isomers or the isomer pair Ia+Ib at an undesired ratio.

    摘要翻译: PCT No.PCT / HU90 / 00006 Sec。 371 1990年10月19日第 102(e)1990年10月19日PCT PCT 1990年1月17日PCT公布。 出版物WO90 / 08132 日本1990年7月26日。本发明涉及一种制备式(I)的氯氰菊酯的异构体混合物的方法,其中由1,3和α表示的碳原子代表手性碳原子 并且波浪线表示与环丙烷环有关的顺式或反式构型,其中含有理论上可能的氯氰菊酯的8-异构体至少95%的1RtransS和1StransR(Ib)异构体对,或仅包含1RcisC和1ScisR(Ia )和通过在胺碱和溶剂的存在下由起始氯氰菊酯异构体混合物进行的二级的不对称转化,比率(Ia):(Ib)= 55:45-25:75的异构体对(Ib)= 55:45-25: 异构体对(Ib)顺式和其他反式异构体或异构体对Ia + Ib处于不期望的比例。

    Highly pure amidoximes
    6.
    发明授权
    Highly pure amidoximes 失效
    高纯度amidoximes

    公开(公告)号:US5278309A

    公开(公告)日:1994-01-11

    申请号:US19603

    申请日:1993-02-19

    摘要: A pure crystalline O-(2-hydroxy-3-piperidino-1-propyl) nicotinic acid amidoxime base of the Formula (Ib) ##STR1## is disclosed characterized by a melting point of 70.degree. to 73.degree. C., giving, when dissolved in an amount of 1 to 10 ml of concentrated sulfuric acid, a yellow homogeneous solution, and showing the following spectral characteristics:IR spectrum (kBr): .gamma. --O--C.dbd.N 1642 cm.sup.-1.sup.1 H-NMR spectrum (CDCL.sub.3, .delta. ppm): 1.48 m, (6H), CH.sub.2 -piperidine; 2.42 m, (6H), 3.times.CH.sub.2 --N; 3.36, br, (1H), CH--O; 4.08 m, (3H), 1--CH.sub.2, OH; 5.2, br, (2H), NH.sub.2 ; 7.30 m (1H), pyridine-5'; 7.92 m, 4', 8.62 m (1H), 6', 8.88 m, (1H), 2'.

    摘要翻译: 公开了式(Ib)(*化学结构*)的纯结晶O-(2-羟基-3-哌啶-1-基 - 丙基)烟酰胺肟基,其特征在于熔点为70-73℃, 当溶解量为1至10ml浓硫酸时,得到黄色均匀溶液,并显示以下光谱特征:IR光谱(kBr):(γ)-OC = N 1642cm -1 1 H-NMR光谱 (CDCL3,(delta)ppm):1.48m,(6H),CH2-哌啶; 2.42m,(6H),3 * CH2-N; 3.36,br,(1H),CH-O; 4.08m,(3H),1-CH 2,OH; 5.2,br,(2H),NH2; 7.30m(1H),吡啶-5'; 7.92m,4',8.62m(1H),6',8.88m,(1H),2'。