Aliphatic alkanals with improved storage stability and method of
improving the storage stability
    2.
    发明授权
    Aliphatic alkanals with improved storage stability and method of improving the storage stability 有权
    具有改善储存稳定性的脂肪族链烷烃和提高储存稳定性的方法

    公开(公告)号:US6150563A

    公开(公告)日:2000-11-21

    申请号:US134562

    申请日:1998-08-14

    CPC分类号: C07C323/22 C07C45/86

    摘要: Aliphatic alkanals with a water content of greater than 300 ppm which are stable in storage, and a method of improving the storage stability of these aliphatic alkanals, especially of substituted, sulfur-containing alkanals. The formation of oligomers, polymers and condensation products from elimination reactions and oxidation and the subsequent reactions of the products formed results in undesired impurities that are largely prevented by the addition of an organic acid that forms metal complexes and, optionally, alkanolamines or trialkanolamines.

    摘要翻译: 水分大于300ppm的脂肪族链烷烃,其储存稳定,以及提高这些脂肪族链烷烃,特别是取代的含硫链烷烃的储存稳定性的方法。 由消除反应和氧化形成的低聚物,聚合物和缩合产物以及所形成的产物的后续反应导致不期望的杂质,其通过加入形成金属络合物的有机酸和任选的烷醇胺或三链烷醇胺而大大地被防止。

    Method of producing oxazolidinones, the use thereof and novel
oxazolidinones
    5.
    发明授权
    Method of producing oxazolidinones, the use thereof and novel oxazolidinones 失效
    制备恶唑烷酮的方法,其用途和新的恶唑烷酮

    公开(公告)号:US6051715A

    公开(公告)日:2000-04-18

    申请号:US894519

    申请日:1997-08-21

    摘要: The invention concerns a method of producing oxazolidinones of formula (I), wherein R.sup.1 -R.sup.5 have the meanings given in the description, by reacting cyclical anhydrides of formula (II) with carbonyl compounds of general formula (III) at temperatures between ambient temperature and approximately 150.degree. C. The invention also concerns the production of the cyclical anhydrides of formula (II) by reacting N-protected aminodicarboxylic acids of formula (IV) with a dehydrating agent in situ. The invention further concerns the use of oxazolidinones of formula (I) for the .alpha.-selective production of esters of formula (V) and amides of general formula (VII).

    摘要翻译: PCT No.PCT / EP96 / 00390 Sec。 371日期1997年8月21日 102(e)日期1997年8月21日PCT提交1996年1月31日PCT公布。 公开号WO96 / 26194 日期:1996年8月29日本发明涉及一种制备式(I)的恶唑烷酮的方法,其中R1-R5具有本说明书中给出的含义,通过使式(II)的环状酸酐与通式(III)的羰基化合物反应在 环境温度和约150℃之间的温度。本发明还涉及通过将式(IV)的N-保护的氨基二羧酸与脱水剂原位反应来生产式(II)的环状酸酐。 本发明还涉及式(I)的恶唑烷酮用于α-选择性生产式(V)的酯和通式(VII)的酰胺的用途。

    Supported catalyst, process for its production as well as its use in the
oxychlorination of ethylene
    6.
    发明授权
    Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene 失效
    负载催化剂,其生产方法及其在乙烯氧氯化中的应用

    公开(公告)号:US5986152A

    公开(公告)日:1999-11-16

    申请号:US198251

    申请日:1998-11-24

    摘要: A supported catalyst includes: a) 0.5-15 wt. % of one or more Cu-II compounds, the quantitative amounts referring to copper metal; b) 0.1-8 wt. % of one or more alkali metal compounds, the quantitative amounts referring to alkali metal; c) 0.1-10 wt. % of an oxide mixture including; c1) 80-95 mole % of oxides of cerite rare earths with atomic Nos. 57 to 62, except promethium, and c2) 5-20 mole % of zirconium dioxide, where c1) and c2) must together total 100 mole % and the quantitative amount of c) refers to the oxides of the mixture, and d) the remainder up to 100 wt. % being .gamma. and/or .alpha.-aluminum oxide as support material, wherein e) the support material d) has a total pore volume in the range from 0.65 to 1.2 cm.sup.3 /g, and wherein f) the supported catalyst is present in the form of cylindrical hollow bodies having at least one passage channel, the ratio of height h to external diameter d.sup.e being less than 1.5 for diameters d.sub.e of up to 6 mm, and the ratio h/d.sub.e being less than 0.6 for diameter d.sub.e greater than 6 mm. A process for producing the supported catalyst is also described.

    摘要翻译: 负载催化剂包括:a)0.5-15wt。 %的一种或多种Cu-II化合物,定量为铜金属; b)0.1-8wt。 %的一种或多种碱金属化合物,定量为碱金属; c)0.1-10重量% %的氧化物混合物包括: c1)80-95摩尔%的原子号为57〜62的铈铈稀土的氧化物,除了碲,和c2)5-20摩尔%的二氧化锆,其中c1)和c2)必须总共为100摩尔% 定量的c)是指混合物的氧化物,和d)余量高达100wt。 %为γ和/或α-二氧化铝作为载体材料,其中e)载体材料d)具有在0.65-1.2cm 3 / g范围内的总孔体积,并且其中f)负载型催化剂以 具有至少一个通道的圆柱形空心体,对于直径为d至6mm,高度h与外径之比de小于1.5,直径d大于0.6的比率h / de小于0.6 。 还描述了制备负载型催化剂的方法。

    Nucleotide Sequences Which Code for the tal Gene
    8.
    发明申请
    Nucleotide Sequences Which Code for the tal Gene 有权
    核苷酸序列哪些代码为tal基因

    公开(公告)号:US20110117611A1

    公开(公告)日:2011-05-19

    申请号:US12941608

    申请日:2010-11-08

    IPC分类号: C12P13/04

    摘要: The invention relates to an isolated polynucleotide from coryneform bacteria, comprising a polynucleotide sequence chosen from the group consisting of a) polynucleotide which is identical to the extent of at least 70% to a polynucleotide which codes for a polypeptide which comprises the amino acid sequences of SEQ ID NO. 2 or SEQ ID NO. 4, b) polynucleotide which codes for a polypeptide which comprises an amino acid sequence which is identical to the extent of at least 70% to the amino acid sequences of SEQ ID NO. 2 or SEQ ID NO. 4 c) polynucleotide which is complementary to the polynucleotides of a) or b) and d) polynucleotide comprising at least 15 successive nucleotides of the polynucleotide sequences of a), b) or c) and a process for the preparation of L-amino acids, which comprises carrying out the following steps: a) fermentation of the desired L-amino acid-producing bacteria in which at least the tal gene is amplified, b) concentration of the desired product in the medium or in the cells of the bacteria and c) isolation of the L-amino acid.

    摘要翻译: 本发明涉及来自棒状细菌的分离的多核苷酸,其包含选自以下的多核苷酸序列:a)与编码多肽的多核苷酸的程度相同的多核苷酸,所述多核苷酸包含氨基酸序列 SEQ ID NO: 2或SEQ ID NO。 4,b)编码多肽的多核苷酸,其包含与SEQ ID NO:1的氨基酸序列至少70%的程度相同的氨基酸序列。 2或SEQ ID NO。 4)与a)或b)的多核苷酸互补的多核苷酸和d)包含a),b)或c)的多核苷酸序列的至少15个连续核苷酸的多核苷酸,以及制备L-氨基酸的方法 其包括进行以下步骤:a)发酵所需的L-氨基酸生产细菌,其中至少有tal基因被扩增,b)所需产物在培养基中或细菌中的浓度,以及 c)分离L-氨基酸。