1,3-bis-(N-lactamyl) propane and the pharmaceutical and cosmetic use thereof
    1.
    发明授权
    1,3-bis-(N-lactamyl) propane and the pharmaceutical and cosmetic use thereof 有权
    1,3-二 - (N-内酰胺基)丙烷及其药物和化妆品用途

    公开(公告)号:US06497886B1

    公开(公告)日:2002-12-24

    申请号:US09269780

    申请日:1999-04-01

    IPC分类号: A61K4722

    摘要: The present invention relates to a 1,3-bis-(N-lactamyl)propane of general formula (I), wherein radicals R1, R2, R3, R4, R5 and R6 independently stand for hydrogen, alkyl, cycloalkyl, aryl or aralkyl and at least one of said radicals does not stand for hydrogen, (NLac) and (NLac′) are the same or different and stand for N-lactamyl radicals. The invention also relates to the use of said substances as a solvent in pharmaceutical and cosmetic agents. Disclosed are novel compounds of formula (I), wherein R1 and methyl and R2-R6 stand for hydrogen.

    摘要翻译: 本发明涉及通式(I)的1,3-双 - (N-内酰胺基)丙烷,其中基团R 1,R 2,R 3,R 4,R 5和R 6独立代表氢,烷基,环烷基,芳基或芳烷基 并且所述基团中的至少一个不代表氢,(NLac)和(NLac')相同或不同,代表N-内酰胺基。 本发明还涉及所述物质作为药物和化妆品中的溶剂的用途。 公开了式(I)的新化合物,其中R1和甲基和R2-R6代表氢。

    Process for the treatment of wastewater from aldolization processes
    2.
    发明授权
    Process for the treatment of wastewater from aldolization processes 有权
    用于处理醛醇醛化工艺废水的工艺

    公开(公告)号:US07943047B2

    公开(公告)日:2011-05-17

    申请号:US12088777

    申请日:2006-09-25

    IPC分类号: B01D11/04 C07C45/80

    摘要: Process for the treatment of wastewater from an aldolization process which is contaminated with water-soluble and/or dispersed organic impurities by means of single-stage or multistage extraction with an organic liquid of the aldolization process wastewater which has been set to a pH of from 0 to 6, in which an organic liquid obtained by stripping of the acidified aldolization process wastewater or of the acidified and extracted aldolization process wastewater, condensation of the stripped compounds and phase separation of the condensate is used as extractant for the extraction of organic impurities from the acidified aldolization process wastewater and wastewater having a lower content of organic impurities than the aldolization process wastewater fed to the extraction is taken off from the stripping apparatus.

    摘要翻译: 用于通过单级或多级萃取与水溶性和/或分散的有机杂质污染的醛醇醛化方法处理废水的方法,该方法已经设定为pH为 0至6,其中通过汽提酸化的醛化工艺废水或酸化和提取的醛醇化工艺废水获得的有机液体,汽提化合物的冷凝和冷凝物的相分离用作萃取剂,用于萃取有机杂质 酸化的醛醇化工艺废水和有机杂质含量低于进料到萃取的醛化工艺废水中的废水从汽提装置中取出。

    Process for preparing D,L-aspartic acid from ammonium salts of the
maleic acid
    3.
    发明授权
    Process for preparing D,L-aspartic acid from ammonium salts of the maleic acid 失效
    从马来酸的铵盐制备D,L-天冬氨酸的方法

    公开(公告)号:US5756839A

    公开(公告)日:1998-05-26

    申请号:US809141

    申请日:1997-03-24

    CPC分类号: C07C227/06 C07C229/24

    摘要: A process is disclosed for preparing D,L-aspartic acid by beating aqueous solutions of ammonium salts of the maleic acid. The molar ratio of maleic acid to ammonia ranges from 1:1 to 1:50. The process is carried out at temperatures from 60.degree. to 250.degree. C. and pressures of at least 1 bar. The pressure applied during the reaction is adjusted to ensure that the reaction mixture is almost completely present in liquid phase. Excess ammonia is removed and the reaction solution is acidified so as to release D,L-aspartic acid, which is then isolated.

    摘要翻译: PCT No.PCT / EP95 / 03600 Sec。 371日期1997年3月24日 102(e)1997年3月24日PCT PCT 1995年9月13日PCT公布。 出版物WO96 / 09277 日期:1996年3月28日公开了通过马来酸的铵盐的打浆水溶液制备D,L-天冬氨酸的方法。 马来酸与氨的摩尔比为1:1至1:50。 该方法在60℃至250℃的温度和至少1巴的压力下进行。 调节反应期间施加的压力以确保反应混合物几乎完全存在于液相中。 除去过量的氨,并将反应溶液酸化,以释放分离的D,L-天冬氨酸。

    Preparation of 1,3-diols
    5.
    发明授权
    Preparation of 1,3-diols 失效
    1,3-二醇的制备

    公开(公告)号:US06380443B1

    公开(公告)日:2002-04-30

    申请号:US09677862

    申请日:2000-10-03

    IPC分类号: C07C2704

    摘要: A process for preparing 1,3-diols having 6 or more carbon atoms comprises a) provision of at least one alkanal having at least three carbon atoms; b) thermal treatment of the alkanal in the absence of a basic catalyst; c) hydrogenation of the aldol addition product formed in step b); and d) isolation of the 1,3-diol obtained. The process of the present invention makes it possible to prepare 1,3-diols simply and inexpensively.

    摘要翻译: 制备具有6个或更多个碳原子的1,3-二醇的方法包括:a)提供至少一种具有至少三个碳原子的链烷烃; b)在没有碱性催化剂的情况下热处理链烷烃; c)步骤b)中形成的醛醇加成产物的氢化; 和d)所获得的1,3-二醇的分离。本发明的方法使得可以简单且廉价地制备1,3-二醇。

    Method for the decomposition of high boiling by-products produced in the synthesis of polyhydric alcohols
    7.
    发明授权
    Method for the decomposition of high boiling by-products produced in the synthesis of polyhydric alcohols 失效
    分解合成多元醇产生的高沸点副产物的方法

    公开(公告)号:US06586641B2

    公开(公告)日:2003-07-01

    申请号:US10169001

    申请日:2002-06-26

    IPC分类号: C07C3118

    摘要: A process is provided for increasing the yield in the preparation of polyhydric alcohols obtained from methylolated alkanals by hydrogenation, wherein derivatives of these alcohols are decomposed by adding 5 ppm to 1% by weight, preferably 100 to 1000 ppm, of a suitable acid to an anhydrous mixture containing these derivatives, heating the mixture to temperatures of 100 to 300° C. and then separating off the polyhydric alcohol by distillation. This process makes it possible simply and efficiently to decompose compounds which boil above the polyhydric alcohol and are unwanted by-products of its synthesis.

    摘要翻译: 提供了一种通过氢化提高由羟甲基化的链烷醇制备的多元醇的产率的方法,其中这些醇的衍生物通过将5ppm至1wt%,优选100-1000ppm的合适的酸加成到 含有这些衍生物的无水混合物,将混合物加热至100-300℃,然后蒸馏除去多元醇。 该方法使得可以简单有效地分解沸腾在多元醇上的化合物并且是其合成的不希望的副产物。

    Process for the preparation of polyalcohols
    9.
    发明授权
    Process for the preparation of polyalcohols 失效
    制备多元醇的方法

    公开(公告)号:US6018074A

    公开(公告)日:2000-01-25

    申请号:US68300

    申请日:1998-10-05

    摘要: A process for the preparation of polyalcohols comprises the stages:(a) Reaction of an alkanal or ketone with formaldehyde in aqueous solution in the presence of a tertiary amine, to form a formates containing polyalcohol product mixture,(b) removal of water, excess tertiary amine, excess formaldehyde(c) heating of remaining mixture from (b) with removal of further formaldehyde and tertiary amine with formation of the formates of the polyalcohol,(d) transfer of tertiary amine removed from stage (b) and/or from stage (c), to synthesis stage (a) and/or to the subsequent transesterification stage (e),(e) transesterification of the resulting formates of the polyalcohol from stage (c) with an alcohol of the formula ROH in the presence of a transesterification catalyst to give polyalcohols and formates of the formula ##STR1## where R is a hydrocarbon radical, preferably alkyl of 1-6, particularly preferably 1-2, carbon atoms, and(f) isolation of the polyalcohols.

    摘要翻译: PCT No.PCT / EP96 / 04922 Sec。 371日期:1998年10月5日 102(e)日期1998年10月5日PCT 1996年11月11日PCT公布。 公开号WO97 / 17313 日期1997年5月15日制备多元醇的方法包括以下阶段:(a)在叔胺存在下,在水溶液中使烷醛或酮与甲醛反应,形成含有多元醇产物混合物的甲酸盐,(b) 的水,过量的叔胺,过量的甲醛(c)从(b)加热剩余的混合物,同时除去多元醇的甲酸盐形成的另外的甲醛和叔胺,(d)从阶段(b)中除去的叔胺的转移, 和(或)从阶段(c)到合成阶段(a)和/或后续酯交换反应阶段(e),(e)所得到的多元醇的甲酸酯从阶段(c)与式ROH的醇进行酯交换反应 在酯交换催化剂的存在下,得到下式的多元醇和甲酸盐,其中R是烃基,优选1-6的烷基,特别优选1-2的碳原子,和(f)多元醇的分离。