Method for Preparation of Piperazindione Derivatives
    4.
    发明申请
    Method for Preparation of Piperazindione Derivatives 审中-公开
    哌嗪二酮衍生物的制备方法

    公开(公告)号:US20110144336A1

    公开(公告)日:2011-06-16

    申请号:US13058677

    申请日:2009-07-30

    CPC classification number: C07D241/08

    Abstract: A process for preparing piperazinedione derivatives of the formula I in which R1 is hydrogen, alkyl, alkenyl, alkynyl and alkylcarbonyl, R2 is hydrogen, alkyl, alkenyl, C3-C4-alkynyl and C(═O)R11, R3, R4 are each hydrogen, alkyl and haloalkyl, where the groups may be substituted, which comprises reacting amines of the formula II H2N—R1  II in which R1 is hydrogen and alkyl which may optionally be substituted with N-acylated amino acid derivatives of the formula III in which X is halogen, Y is halogen, alkoxy or phenyloxy which may be substituted and R2, R3 and R4 are each as defined at the outset, under basic conditions in an aqueous solvent.

    Abstract translation: 其中R 1是氢,烷基,烯基,炔基和烷基羰基,R 2是氢,烷基,烯基,C 3 -C 4炔基和C(= O)R 11,R 3,R 4各自是式I的哌嗪二酮衍生物的方法 氢,烷基和卤代烷基,其中基团可以被取代,其包括使式II的其中R 1是氢的式IIH 2 N-R 1 II的烷基和可以被式III的N-酰化的氨基酸衍生物任选取代的烷基,其中 X是卤素,Y是可以被取代的卤素,烷氧基或苯氧基,R2,R3和R4各自在碱性条件下在水性溶剂中首先定义。

    Method for producing 5,5-disubstituted 4,5-dihydroisoxazol-3-thiocarboxamidine salts
    7.
    发明授权
    Method for producing 5,5-disubstituted 4,5-dihydroisoxazol-3-thiocarboxamidine salts 有权
    制备5,5-二取代的4,5-二氢异恶唑-3-硫代甲脒盐的方法

    公开(公告)号:US08921572B2

    公开(公告)日:2014-12-30

    申请号:US13511093

    申请日:2009-11-26

    Applicant: Timo Frassetto

    Inventor: Timo Frassetto

    CPC classification number: C07D261/04

    Abstract: A process for preparing 5,5-disubstituted 4,5-dihydroisoxazole-3-thiocarboxamidine salts of the formula (I), wherein 3-unsubstituted 4,5-dihydroisoxazoles are first reacted with a chlorinating or brominating reagent to give 3-halogenated 4,5-dihydroisoxazoles and the latter then react with thiourea to give the compounds of the formula (I).

    Abstract translation: 制备式(I)的5,5-二取代的4,5-二氢异恶唑-3-硫代甲脒盐的方法,其中3-未取代的4,5-二氢异恶唑首先与氯化或溴化试剂反应,得到3-卤代4 ,5-二氢异恶唑,然后与硫脲反应,得到式(I)化合物。

    Method for Producing 5,5-Disubstituted 2-Isoxazolines
    9.
    发明申请
    Method for Producing 5,5-Disubstituted 2-Isoxazolines 审中-公开
    生产5,5-二取代2-异恶唑啉的方法

    公开(公告)号:US20120238760A1

    公开(公告)日:2012-09-20

    申请号:US13511090

    申请日:2009-11-26

    Applicant: Timo Frassetto

    Inventor: Timo Frassetto

    CPC classification number: C07D261/04

    Abstract: The present invention relates to a process for preparing 5,5-disubstituted 2-isoxazolines of the formula (I) where R1, R2 are each independently C1-C6-alkyl or C1-C4-haloalkyl; or R1 and R2 together form a C2-C5-alkanediyl chain which may be mono- to tetrasubstituted by C1-C4-alkyl and/or interrupted by oxygen or by optionally C1-C4-alkyl-substituted nitrogen.

    Abstract translation: 本发明涉及制备式(I)的5,5-二取代的2-异恶唑啉的方法,其中R 1,R 2各自独立地为C 1 -C 6 - 烷基或C 1 -C 4 - 卤代烷基; 或者R 1和R 2一起形成C 2 -C 5链烷二基链,其可以被C 1 -C 4烷基单取代和四取代,和/或被中间或被任选被C 1 -C 4烷基取代的氮所隔开。

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