PROCESS FOR PRODUCING SUBSTITUTED 2-ALLYLANILINES AND SUBSTITUTED 4-AMINOINDANES

    公开(公告)号:US20210363106A1

    公开(公告)日:2021-11-25

    申请号:US17056986

    申请日:2019-05-21

    Abstract: The present invention primarily relates to a process for producing certain substituted 2-allylanilines of the hereinbelow-defined formula (I) and their use in a process for producing substituted 4-aminoindane derivatives of the hereinbelow-defined formula (V). The present invention further relates to a process for producing fungicidal indanyl carboxamides. In particular, the present invention relates to a process for producing 2-(difluoromethyl)-N-(1,1-dimethyl-3-propyl-2,3-dihydro-1H-inden-4-yl)nicotinamide and/or 3-(difluoromethyl)-N-[(R)-2,3-dihydro-1,1,3-trimethyl-1H-inden-4-yl]-1-methylpyrazole-4-carboxamide.

    CROSS-COUPLING REACTION CATALYST
    2.
    发明申请

    公开(公告)号:US20210308660A1

    公开(公告)日:2021-10-07

    申请号:US17269093

    申请日:2019-08-28

    Abstract: It is an object of the present invention to provide a catalyst for a cross-coupling reaction in which an organometallic complex is sufficiently immobilized on a carrier and an object product can be easily obtained. The catalyst for a cross-coupling reaction of the present invention has a carrier part composed of a synthetic resin and an organometallic complex part immobilized on the carrier part by chemical bonding, and has a structure represented by formula (P1), wherein in (P1) R1, R2 may be the same or different, and is a substituent such as a hydrogen atom. R3, R4, R5, R6, R8, R9 may be the same or different and are substituents, such as a hydrogen. X represents a halogen atom, and R7 represents a substituent having 3 to 20 carbon atoms with a π bond. RS1 represents the main chain of the synthetic resin precursors having —CH2OH group at their end.

    PROCESS FOR THE SYNTHESIS OF 2,6-DIAMINO-3,5-DINITROTOLUENE
    8.
    发明申请
    PROCESS FOR THE SYNTHESIS OF 2,6-DIAMINO-3,5-DINITROTOLUENE 失效
    2,6-二氨基-3,5-哌啶酮的合成方法

    公开(公告)号:US20100160678A1

    公开(公告)日:2010-06-24

    申请号:US12634767

    申请日:2009-12-10

    CPC classification number: C07C211/50 C07C51/412 C07C209/10 C07C211/52

    Abstract: An improved process is provided for the preparation of 2,6-diamino-3,5-dinitrotoluene by amination of 2,6-dichloro-3,5-dinitrotoluene. The presence of water unexpectedly results in a highly pure product, free of glycol ether impurities. This product can be used to make highly pure 2,3,5,6-tetraaminotoluene, which in turn can be used to make high molecular weight polybenzimidazoles for high strength fibers.

    Abstract translation: 提供了通过2,6-二氯-3,5-二硝基甲苯的胺化制备2,6-二氨基-3,5-二硝基甲苯的改进方法。 水的存在意外地导致高纯度的产品,不含二醇醚杂质。 该产品可用于制备高纯度的2,3,5,6-四氨基甲苯,其又可用于制备用于高强度纤维的高分子量聚苯并咪唑。

    Process for the production of anilines
    9.
    发明授权
    Process for the production of anilines 有权
    生产苯胺的方法

    公开(公告)号:US07737301B2

    公开(公告)日:2010-06-15

    申请号:US12065304

    申请日:2006-08-28

    Abstract: The present invention relates to a process for the preparation of compounds of formula wherein R1, R2 and R3 are each independently of the others hydrogen or C1-C4alkyl, by a) reacting compounds of formula (II) wherein R1, R2 and R3 are as defined for formula (I) and X is bromine or chlorine, with a compound of formula (III) wherein R4 is hydrogen or C1-C4alkyl, in the presence of a base and catalytic amounts of at least one palladium complex compound, to form compounds of formula (IV) wherein R1, R2, R3 and R4 are as defined for formula (I), and b) converting those compounds, using a reducing agent, into compounds of formula (I).

    Abstract translation: 本发明涉及制备下式化合物的方法,其中R 1,R 2和R 3各自独立地为氢或C 1 -C 4烷基,通过a)使式(Ⅱ)化合物(其中R 1,R 2和R 3为 与式(Ⅲ)化合物(其中R 4是氢或C 1 -C 4烷基)在碱和催化量的至少一种钯络合物的存在下形成化合物(I),X是溴或氯, 其中R 1,R 2,R 3和R 4如式(I)所定义,并且b)使用还原剂将这些化合物转化为式(I)化合物。

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