Method for producing aminoalkoxy benzylamines and aminoalkoxy benzonitriles as intermediates
    4.
    发明授权
    Method for producing aminoalkoxy benzylamines and aminoalkoxy benzonitriles as intermediates 有权
    制备氨基烷氧基苄胺和氨基烷氧基苯甲腈作为中间体的方法

    公开(公告)号:US07256312B2

    公开(公告)日:2007-08-14

    申请号:US10522614

    申请日:2003-07-18

    IPC分类号: C07C209/48 C07C253/30

    摘要: The invention relates to a process for preparing 4-[aminoalkoxy]benzylamines of the general formula (I) by catalytically hydrogenating 4-[aminoalkoxy]benzonitriles of the general formula (II) where, in the compounds of the general formulae I and II, R1 is C1-C8-alkylene, R2 and R3 are each independently C1-C8-alkyl or are joined to give a ring which may additionally contain a heteroatom, which comprises carrying out the hydrogenation at elevated pressure and elevated temperatures. The invention further relates to a process for preparing the intermediate (II).

    摘要翻译: 本发明涉及通过催化氢化通式(II)的4- [氨基烷氧基]苯甲腈制备通式(I)的4- [氨基烷氧基]苄胺的方法,其中在通式I和II的化合物中, R 1是C 1 -C 8 - 亚烷基,R 2和R 3 O 3 各自独立地为C 1 -C 8 - 烷基或连接,得到可另外含有杂原子的环,其包括在升高的压力下进行氢化并升高 温度。 本发明还涉及制备中间体(II)的方法。

    Method for the production of menthol
    7.
    发明授权
    Method for the production of menthol 有权
    薄荷醇生产方法

    公开(公告)号:US07709688B2

    公开(公告)日:2010-05-04

    申请号:US11720279

    申请日:2005-11-24

    IPC分类号: C07C29/17 C07C35/12

    摘要: Processes comprising: (a) enantioselectively hydrogenating a staffing material comprising a component selected from geraniol, nerol and mixtures thereof to form optically active citronellol; (b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.

    摘要翻译: 方法包括:(a)对对选择性氢化包含选自香叶醇,橙花醇及其混合物的组分的起始材料以形成光学活性香茅醇; (b)将光学活性香茅醇转化为光学活性香茅醛; (c)使光学活性香茅醛环化以形成包含光学活性异ule ol醇的混合物; 和(d)对所述混合物进行进一步处理,包括:(i)从混合物中分离光学活性异胡胶,并将分离的光学活性异胡醇氢化以形成光学活性薄荷醇; 或者(ⅱ)将混合物中的光学活性异ule)醇氢化以形成光学活性薄荷醇,并将该光学活性薄荷醇与混合物分离。

    Method for the isomerization of allyl alcohols
    10.
    发明授权
    Method for the isomerization of allyl alcohols 失效
    烯丙醇异构化方法

    公开(公告)号:US06989468B2

    公开(公告)日:2006-01-24

    申请号:US10380116

    申请日:2001-09-18

    摘要: The present invention relates to a process for the isomerization of precursor allyl alcohols of the formula (I) to product allyl alcohols of the formula (II) where R1 to R5 are hydrogen or a mono- or polyunsaturated or saturated C1-C12-alkyl radical, which may be substituted, in both directions of the equilibrium, wherein the reaction takes place in the presence of an oxoperoxotungsten(VI) complex of the formula (III), where L1, L2 in each case independently of one another are water or a free coordination site, or are optionally a ligand chosen from the group of aminoalcohols, aminophenols, aminocarboxylic acids or mixtures thereof or mixtures of amines with alcohols, phenols or carboxylic acids, m is the number 1 or 2 n is a number from 1 to 6 p is a number from 1 to 6, where in the case of p>1 a di- or polynuclear complex is formed, and also to novel oxoperoxotungsten(VI) complexes and to the use thereof.

    摘要翻译: 本发明涉及将式(I)的前体烯丙醇异构化制备成式(II)的产物烯丙醇的方法,其中R 1至R 5, 是在平衡的两个方向上是氢或可以被取代的单或多不饱和或饱和的C 1 -C 12 - 烷基,其中反应发生 在式(III)的氧代过氧钨(VI)络合物的存在下,其中每种情况下,L 1,L 2彼此独立地是水或游离配位部位,或任选地是选自氨基醇,氨基苯酚, 氨基羧酸或其混合物或胺与醇,酚或羧酸的混合物,m为1或2,n为1至6的数,p为1至6的数,其中在p> 1的情况下 形成二核或多核络合物,还涉及新型氧合倍钨(VI)络合物及其用途。