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    • 2. 发明授权
    • Process for producing L-carnitine from D,L-carnitine nitrile salts
    • 从D,L-CARNITINE NITRILE SALTS生产L-酪氨酸的方法
    • US5166426A
    • 1992-11-24
    • US858492
    • 1992-03-27
    • Harald JakobKlaus HuthmacherHerbert Klenk
    • Harald JakobKlaus HuthmacherHerbert Klenk
    • C07B57/00C07C227/34C07C229/06
    • C07C227/34
    • Synthesis of L-carnitine by chemical optical resolution of D,L-carnitine nitrile salts, where the D,L-carnitine nitrile salt is reacted with optically active N-acetylproline as the resolving agent in order to form the diastereomer salts after conversion to the hydroxide form, one of the two diastereomer salts is separated by fractional crystallization and the fraction containing mainly L-carnitine nitrile salt is treated with an optically inactive strong acid in order to split off the optically active N-acetylproline and then the resolving agent is separated and the resulting L-carnitine nitrile salt is saponified to L-carnitine. N-acetyl-L-proline is used as the resolving agent and the diastereomer (LL) salt is obtained in crystalline form in a high optical purity by fractional crystallization and the L-carnitine nitrile salt obtained after splitting off and separating N-acetyl-L-proline is used directly for saponification without further crystallization.
    • 通过化学光学拆分D,L-肉碱腈盐合成左旋肉碱,其中D,L-肉毒碱腈与光学活性N-乙酰脯氨酸作为拆分剂反应,以便在转化为 氢氧化物形式,通过分级结晶分离两种非对映异构体盐中的一种,并且用光学惰性的强酸处理主要含有L-肉碱腈盐的级分,以便分离光学活性N-乙酰脯氨酸,然后分离出拆分剂 并将所得的L-肉碱腈盐皂化成L-肉毒碱。 使用N-乙酰基-L-脯氨酸作为拆分剂,通过分级结晶以高光学纯度获得结晶形式的非对映异构体(LL)盐,分解N-乙酰基-L-脯氨酸后得到的L-肉碱腈盐, L-脯氨酸直接用于皂化而不进一步结晶。
    • 9. 发明申请
    • Fabric Softening Composition
    • 织物柔软组合物
    • US20130053299A1
    • 2013-02-28
    • US13643486
    • 2011-04-19
    • Hans-Jürgen KöhleUlrike KottkeHans HenningHarald Jakob
    • Hans-Jürgen KöhleUlrike KottkeHans HenningHarald Jakob
    • C11D3/60
    • C11D1/835C07C213/06C07C219/06C11D1/62C11D1/667C11D3/001C11D3/0015C11D3/2013C11D3/2079
    • A fabric softening composition which comprises as component A a tertiary or quaternary ammonium salt of formulae (I) or (II): R1R2R3N+CH2CHR4OC(═O)R5X−  (I) R1R2R3N+(CH2)3NHR(═O)R5X−  (II) in which R1 is hydrogen, methyl or ethyl, R2 and R3, independently of one another, are C1-4 alkyl or C2-4 hydroxyalkyl, R4 is hydrogen or methyl, R5 is a linear C15-21 alkyl or alkenyl radical and X− is a monovalent anion, and as component B a nonionic softener with only one long-chain hydrocarbon radical bonded to a polar radical having at least one free hydroxy group, where fatty alcohol alkoxylate or fatty acid alkoxylate are excluded as component B, exhibits a good softening effect and forms storage-stable dispersions if the molar ratio of component A to component B is in the range from 2:1 to 1:3, the difference between the average chain length of the long-chain hydrocarbon radicals of components A and B is at most 2 carbon atoms and the hydrocarbon radicals of components A and B have on average in each case at most 0.5 double bonds per hydrocarbon radical.Such a composition can be produced by reacting a fatty acid, a C2-6 diol or C3-9 polyol, and a tertiary alkanolamine or a diamine having a tertiary and primary amino group in a suitable molar ratio with the removal of water and subsequent alkylation or protonation.
    • 包含作为组分A的式(I)或(II)的叔胺或季铵盐的织物柔软组合物:R1R2R3N + CH2CHR4OC(= O)R5X-(I)R1R2R3N +(CH2)3NHR(= O)R5X-(II )其中R1是氢,甲基或乙基,R2和R3彼此独立地是C1-4烷基或C2-4羟烷基,R4是氢或甲基,R5是直链C15-21烷基或烯基,X是 - 是一价阴离子,并且作为组分B,不包括仅具有一个长链烃基键合至具有至少一个游离羟基的极性基团的非离子软化剂,其中排除脂肪醇烷氧基化物或脂肪酸烷氧基化物作为组分B,表现出 如果组分A与组分B的摩尔比在2:1至1:3的范围内,组分A的长链烃基的平均链长与组分A的长链烃基的平均链长与 B是至多2个碳原子和组分A和C的烃基 B在每种情况下平均每个烃基最多0.5个双键。 这样的组合物可以通过使脂肪酸,C 2-6二醇或C 3-9多元醇与叔链烷醇胺或具有叔胺和伯氨基的二胺与合适的摩尔比与水的去除和随后的烷基化反应来制备 或质子化。