PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE STARTING FROM PROP-2-EN-1-AMINE
    1.
    发明申请
    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE STARTING FROM PROP-2-EN-1-AMINE 失效
    从丙-2-烯-1-胺开始制备2,2-二氟乙烯胺的方法

    公开(公告)号:US20120142971A1

    公开(公告)日:2012-06-07

    申请号:US13292765

    申请日:2011-11-09

    摘要: A process for the preparation of 2,2-difluoroethylamine of the formula (I) CHF2CH2NH2  (I) comprising the stages (i) and (ii): stage (i): reaction of 2,2-difluoro-1-haloethane of the formula (II) CHF2—CH2Hal  (II) in which Hal is chlorine, bromine or iodine, with prop-2-en-1-amine of the formula (III) to give N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (IV) preferably in the presence of an acid scavenger, and stage (ii): removal of the allyl group from the N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (IV) obtained in stage (i) to give 2,2-difluoroethylamine of the formula (I) or a salt thereof.

    摘要翻译: 制备式(I)的2,2-二氟乙胺的方法包括步骤(i)和(ii)的步骤(i):阶段(i):2,2-二氟-1-卤代乙烷的反应 式(II)其中Hal为氯,溴或碘的CHF 2 -CH 2 Hal(II)与式(III)的丙-2-烯-1-胺反应,得到N-(2,2-二氟乙基)丙-2-醇 (IV)的1-烯-1-胺优选在酸清除剂的存在下,和阶段(ii):从N-(2,2-二氟乙基)丙-2-烯-1-醇中除去烯丙基 - 胺,得到式(I)中得到的式(Ⅳ)化合物,得到式(I)的2,2-二氟乙胺或其盐。

    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE STARTING FROM A BENZYLAMINE COMPOUND
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE STARTING FROM A BENZYLAMINE COMPOUND 有权
    从苄腈化合物制备2,2-二氟乙烯胺的制备方法

    公开(公告)号:US20120123163A1

    公开(公告)日:2012-05-17

    申请号:US13292987

    申请日:2011-11-09

    IPC分类号: C07C209/62 C07C209/08

    摘要: Process for the preparation of 2,2-difluoroethylamine of the formula (I) CHF2CH2NH2  (I) comprising the stages (i) and (ii): stage (i): reaction of 2,2-difluoro-1-haloethane of the general formula (II) CHF2—CH2Hal  (II), with a benzylamine compound of the formula (III) in the presence of an acid scavenger, in which, in formula (II), Hal is chlorine, bromine or iodine, and, in the formulae (III), R1 is hydrogen or C1-C12-alkyl, and R2 is hydrogen, halogen, C1-C12-alkyl or C1-C6-alkoxy; stage (ii): catalytic hydrogenation of the N-benzyl-2,2-difluoroethanamine compound obtained in the stage (i) to give 2,2-difluoroethylamine of the formula (I) or a salt thereof.

    摘要翻译: 制备式(I)的2,2-二氟乙胺的方法包括阶段(i)和(ii)的CHF 2 CH 2 NH 2(I):阶段(i):一般的2,2-二氟-1-卤代乙烷的反应 式(II)CHF 2 -CH 2 Hal(II)与式(III)的苄胺化合物在酸清除剂的存在下反应,其中在式(II)中,Hal是氯,溴或碘,在 式(III)中,R 1是氢或C 1 -C 12烷基,R 2是氢,卤素,C 1 -C 12烷基或C 1 -C 6烷氧基; 阶段(ii):在阶段(i)中获得的N-苄基-2,2-二氟乙胺化合物的催化氢化,得到式(I)的2,2-二氟乙胺或其盐。

    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE DERIVATIVES STARTING FROM N-(2,2-DIFLUOROETHYL)PROP-2-EN-1-AMINE
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE DERIVATIVES STARTING FROM N-(2,2-DIFLUOROETHYL)PROP-2-EN-1-AMINE 有权
    制备从N-(2,2-二氟乙基)丙-2-烯-1-胺起始的2,2-二氟乙酰胺衍生物的方法

    公开(公告)号:US20120123130A1

    公开(公告)日:2012-05-17

    申请号:US13292930

    申请日:2011-11-09

    IPC分类号: C07D213/38 C07D277/28

    摘要: Process for the preparation of 2,2-difluoroethylamine derivatives of the formula (IV) comprising the steps (i) and (ii): step (i): reaction of N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (I) with a compound of the formula (II) A-CH2-E  (II) to give a compound of the formula (III) optionally in the presence of an inorganic or organic base, and step (ii): removal of the allyl group from the compound of the formula (III), in which, in the formulae (II), (III) and (IV), A and E have the meanings given in the description.

    摘要翻译: 制备包含步骤(ⅰ)和(ⅱ)的式(Ⅳ)的2,2-二氟乙胺衍生物的方法:步骤(ⅰ):N-(2,2-二氟乙基)丙-2-烯-2-酮 式(I)的1-胺与式(II)化合物A-CH 2 -E(II)的化合物,任选地在无机或有机碱的存在下,得到式(III)的化合物,和步骤 ii):从式(III)化合物中除去烯丙基,其中在式(II),(III)和(IV)中,A和E具有在说明书中给出的含义。

    METHOD FOR PREPARING 4-AMINOBUT-2-ENOLIDES
    6.
    发明申请
    METHOD FOR PREPARING 4-AMINOBUT-2-ENOLIDES 有权
    4-AMINOBUT-2-ENOLIDES的制备方法

    公开(公告)号:US20120323023A1

    公开(公告)日:2012-12-20

    申请号:US13591431

    申请日:2012-08-22

    IPC分类号: C07D307/68

    CPC分类号: C07D307/68

    摘要: Process for preparing 2,2-difluoroethylamine derivatives, wherein compounds of the general formula (IV) are reduced to the corresponding 2,2-difluoroethylamine derivatives of the general formula (III), where the A radical is as defined in the description:

    摘要翻译: 制备2,2-二氟乙胺衍生物的方法,其中通式(IV)的化合物还原为通式(III)的相应的2,2-二氟乙胺衍生物,其中A基团如描述中所定义:

    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE
    7.
    发明申请
    PROCESS FOR THE PREPARATION OF 2,2-DIFLUOROETHYLAMINE 有权
    制备2,2-二氟乙酰胺的方法

    公开(公告)号:US20120190867A1

    公开(公告)日:2012-07-26

    申请号:US13356071

    申请日:2012-01-23

    IPC分类号: C07C209/62 C07D207/404

    摘要: A process for the preparation of 2,2-difluoroethylamine, comprising the reaction of 2,2-difluoro-1-chloroethane with an imide of the formula (II) in the presence of an acid scavenger, to give a compound of the formula (III) in which, in the compounds of the formulae (II) and (III), R1 and R2 are, each independently of one another, hydrogen or C1-C6-alkyl or R1 and R2 form, together with the carbon atoms to which they are bonded, a six-membered aromatic ring which is optionally substituted; and the cleavage of 2,2-difluoroethylamine by reaction of the compound of the formula (III) with acid, base or hydrazine.

    摘要翻译: 一种制备2,2-二氟乙胺的方法,包括在酸清除剂存在下2,2-二氟-1-氯乙烷与式(II)的酰亚胺的反应,得到式( III),其中在式(II)和(III)的化合物中,R 1和R 2各自彼此独立地为氢或C 1 -C 6烷基或R 1和R 2与其中的 它们是键合的,任选被取代的六元芳环; 和通过式(III)的化合物与酸,碱或肼反应来裂解2,2-二氟乙胺。