IMPROVED PROCESS FOR SYNTHESIZING FUNCTIONALIZED MERCAPTANS

    公开(公告)号:US20230295080A1

    公开(公告)日:2023-09-21

    申请号:US18005306

    申请日:2021-07-13

    申请人: ARKEMA FRANCE

    IPC分类号: C07C319/08 C12P13/12 C12N9/10

    摘要: The present invention relates to a process for synthesizing functionalized mercaptans essentially in the absence of oxygen, and also to a composition making it possible in particular to implement this process. Said functionalized mercaptans are of the following formula (I):





    in which,

    R1 and R7, which are identical or different, are a hydrogen atom or an aromatic or nonaromatic, linear, branched or cyclic, saturated or unsaturated, hydrocarbon chain of 1 to 20 carbon atoms which may comprise one or more heteroatoms;
    X is chosen from -C(=O)-, -CH2- or -CN;
    R2 is:

    (i) either absent when X represents -CN,
    (ii) or a hydrogen atom,
    (iii) or -OR3, R3 being a hydrogen atom or an aromatic or nonaromatic, linear, branched or cyclic, saturated or unsaturated, hydrocarbon chain of 1 to 20 carbon atoms which may comprise one or more heteroatoms,
    (iv) or -NR4R5, R4 and R5, which are identical or different, being a hydrogen atom or an aromatic or nonaromatic, linear, branched or cyclic, saturated or unsaturated, hydrocarbon chain of 1 to 20 carbon atoms which may comprise one or more heteroatoms;


    n is equal to 1 or 2; and * represents an asymmetric carbon.