Process for preparing a cyclic tertiary methylamine
    90.
    发明授权
    Process for preparing a cyclic tertiary methylamine 有权
    制备环状叔甲胺的方法

    公开(公告)号:US08637668B2

    公开(公告)日:2014-01-28

    申请号:US13158667

    申请日:2011-06-13

    IPC分类号: C07D295/03

    CPC分类号: C07D295/03

    摘要: Process for preparing a cyclic tertiary methylamine of the formula I where A is a C4-alkylene group, a C5-alkylene group or a —(CH2)2—B—(CH2)2— group, where B is oxygen (O) or an N—R1 radical and R1 is C1-C5-alkyl, aryl or C5-C7-cycloalkyl, wherein an amino alcohol II from the group consisting of 1,4-aminobutanol, 1,5-aminopentanol, aminodiglycol (ADG) or aminoethylethanolamine of the formula IIa where R1 is as defined above or is hydrogen (H), in which case R1═CH3 in the amine I, is reacted with methanol in a reactor at a temperature in the range from 150 to 270° C. in the liquid phase in the presence of a copper-comprising heterogeneous catalyst.

    摘要翻译: 制备式I的环状叔甲胺的方法,其中A是C 4 - 亚烷基,C 5-亚烷基或 - (CH 2)2 -B-(CH 2)2 - 基,其中B是氧(O)或 R 1是C 1 -C 5 - 烷基,芳基或C 5 -C 7 - 环烷基,其中由1,4-氨基丁醇,1,5-氨基戊醇,氨基二甘醇(ADG)或氨基乙基乙醇胺组成的组中的氨基醇II 其中R 1如上定义或是氢(H),在这种情况下,胺I中的R 1 = CH 3在反应器中在150-270℃的温度下与甲醇反应,在 在含铜的非均相催化剂存在下的液相。