Preparation of alkyl carboxylates by hydrocarbonylation
    2.
    发明授权
    Preparation of alkyl carboxylates by hydrocarbonylation 失效
    通过烃基制备羧酸烷基酯

    公开(公告)号:US4997978A

    公开(公告)日:1991-03-05

    申请号:US261635

    申请日:1988-10-24

    CPC分类号: C07C51/12

    摘要: Alkyl carboxylates of the formula:R--CO--O--CH.sub.2 R'are prepared by hydrocarbonylating a compound of the formula:R--CO--O--R'in the simultaneous presence, in the reaction medium, of cobalt, ruthenium, an alkyl iodide and an ionic iodide, the atomic ratio Co/Ru being less than or equal to 1, and the total amount of iodine-containing promoters present in the medium being such that I/Ru is greater than or equal to 5.

    摘要翻译: 式R-CO-O-CH 2 R'的烷基羧酸盐通过在反应介质中同时存在钴,钌,烷基碘和 离子碘化物,原子比Co / Ru小于或等于1,介质中存在的含碘促进剂的总量使得I / Ru大于或等于5。

    Peptides, their preparation and compositions containing them
    4.
    发明授权
    Peptides, their preparation and compositions containing them 失效
    肽,它们的制备和含有它们的组合物

    公开(公告)号:US4916119A

    公开(公告)日:1990-04-10

    申请号:US163878

    申请日:1980-06-27

    CPC分类号: C07K5/0215 A61K38/00

    摘要: Tripeptides of the general formula: ##STR1## wherein the symbols R, which may be the same or different represent hydrogen or a fatty acid residue (at least one of them representing a fatty acid residue), R.sub.1 represents hydroxy, amino or alkoxy and R.sub.2 and R.sub.3, which may be the same or different, represent hydrogen, carboxy, carbamoyl or alkoxycarbonyl radical (with the proviso that R.sub.2 and R.sub.3 cannot simultaneously represent a hydrogen atom), the alanine moiety being in the L form, the glutamic acid moiety being in the D form, the lysine moiety (when R.sub.2 or R.sub.3 =a hydrogen atom) being in the L form and the 2,6-diaminopimelic acid moiety or its derivatives (when R.sub.2 and/or R.sub.3 =carboxy, carbamoyl or alkoxycarbonyl) being in the D,D, L,L, D,D/L,L (racemic) or D,L (meso) form, and salts thereof, possess immunological adjuvant and immunostimulant activity.

    摘要翻译: 具有以下通式的三肽:其中符号R可以相同或不同,表示氢或脂肪酸残基(其中至少一个代表脂肪酸残基),R1表示羟基,氨基或烷氧基, R2和R3可以相同或不同,表示氢,羧基,氨基甲酰基或烷氧基羰基(条件是R2和R3不能同时代表氢原子),丙氨酸部分为L形,谷氨酸部分 处于D形式时,赖氨酸部分(当R 2或R 3 =氢原子)为L形时,2,6-二氨基庚二酸部分或其衍生物(当R 2和/或R 3 =羧基,氨基甲酰基或烷氧羰基时) 在D,D,L,L,D,D / L,L(外消旋)或D,L(内消旋)形式及其盐具有免疫佐剂和免疫刺激活性。

    Tetrapeptides and pentapeptides, their preparation and compositions
containing them
    5.
    发明授权
    Tetrapeptides and pentapeptides, their preparation and compositions containing them 失效
    四肽和五肽,它们的制备方法和含有它们的组合物

    公开(公告)号:US4742048A

    公开(公告)日:1988-05-03

    申请号:US163890

    申请日:1980-06-27

    CPC分类号: C07K5/0215 A61K38/00

    摘要: Tetrapeptides and pentapeptides of the formula: ##STR1## wherein R represents hydrogen or a fatty acid residue, R.sub.1 represents hydroxy, amino, alkoxy of 1 to 4 carbon atoms, optionally substituted by phenyl or nitrophenyl, one of R.sub.2 and R.sub.4 represents hydrogen, carboxy, carbamoyl, alkoxycarbonyl of 2 to 5 carbon atoms, optionally substituted by phenyl or nitrophenyl, or a N-carbonylglycine or N-carbonyl-D-alanine radical optionally esterified by alkyl of 1 to 4 carbon atoms (which is optionally substituted by phenyl or nitrophenyl) and the other symbol represents hydrogen, carboxy, carbamoyl, or alkoxycarbonyl fof 2 to 5 carbon atoms, optionally substituted by phenyl or nitrophenyl, and R.sub.3 represents hydrogen, a fatty acid residue or a glycyl or D-alanyl moiety in which the amine group is optionally substituted by a fatty acid residue, it being understood that R.sub.2 and R.sub.4 cannot simutaneously represent hydrogen, that at least one of R.sub.2, R.sub.3 and R.sub.4 represents a glycyl or D-alanyl moiety, that at least one of R and R.sub.3 represents or contains a fatty acid residue, and that the alanine moiety is in the L form, the glutamic acid moiety or its derivatives are in the D form, the lysine moiety or its derivatives, when one of the symbols R.sub.2 and R.sub.4 represents a hydrogen atom, are in the L form, and the 2,6-diaminopimelic acid moiety or fits derivatives, when R.sub.2 and R.sub.4 represent a carboxy, carbamoyl or alkoxycarbonyl radical, are in the D,D L,L,D,D/L,L (racemic) or D,L (meso) form, and salts thereof possess immunostimulant activity.

    摘要翻译: 下式的四肽和五肽:其中R表示氢或脂肪酸残基,R1表示羟基,氨基,1至4个碳原子的烷氧基,任选被苯基或硝基苯基取代,R2和R4之一表示氢,羧基 ,任选被苯基或硝基苯基取代的2-5个碳原子的氨基甲酰基,烷氧基羰基,或任选被1至4个碳原子的烷基酯化的N-羰基甘氨酸或N-羰基-D-丙氨酸基(其任选被苯基或 硝基苯基),另一个符号表示2-5个碳原子的氢,羧基,氨基甲酰基或烷氧基羰基,任选被苯基或硝基苯基取代,R3表示氢,脂肪酸残基或甘氨酰或D-丙氨酰部分,其中胺 基团任选被脂肪酸残基取代,应理解R 2和R 4不能同时代表氢,R 2,R 3和R 4中的至少一个代表甘氨酰或D-丙氨酰部分, R和R 3中的至少一个表示或含有脂肪酸残基,并且丙氨酸部分为L形式,当其中一个为谷氨酸部分或其衍生物时,谷氨酸部分或其衍生物为D形式,赖氨酸部分或其衍生物 当R 2和R 4表示羧基,氨基甲酰基或烷氧基羰基时,符号R 2和R 4表示氢原子,为L形,2,6-二氨基庚二酸部分或配合物衍生物在D,DL,L, D,D / L,L(外消旋)或D,L(内消旋)形式及其盐具有免疫刺激活性。

    Novel anhydrous sodium tripolyphosphate
    7.
    发明授权
    Novel anhydrous sodium tripolyphosphate 失效
    新型无水三聚磷酸钠

    公开(公告)号:US4671949A

    公开(公告)日:1987-06-09

    申请号:US813786

    申请日:1985-12-27

    IPC分类号: C01B25/41 C01B15/16 C01B25/26

    CPC分类号: C01B25/41 C01B25/414

    摘要: A novel anhydrous sodium tripolyphosphate, well adapted as an additive for foodstuffs and detergent compositions, has an Na/P ratio of essentially 1.667.+-.0.01, an apparent density of from 0.5 to 1.1, a mean agglomerate size of less than 100 microns, a phase I content ranging from 15 to 6% by weight, is devoid of insoluble fraction, and displays zero solidification or caking in a quiescent solvent medium.

    摘要翻译: 适合作为食品和洗涤剂组合物添加剂的新型无水三聚磷酸钠具有基本上为1.667 +/- 0.01,表观密度为0.5至1.1,平均聚集体尺寸小于100微米的Na / P比, 15〜6重量%的I相含量不含不溶成分,在静置溶剂介质中显示零固化或结块。

    Process for the preparation of aqueous solutions of low molecular weight
polyacrylic acids or their salts
    8.
    发明授权
    Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts 失效
    制备低分子量聚丙烯酸或其盐的水溶液的方法

    公开(公告)号:US4622425A

    公开(公告)日:1986-11-11

    申请号:US450137

    申请日:1982-12-15

    申请人: Pierre Gagne

    发明人: Pierre Gagne

    IPC分类号: C08F2/10 C08F8/44 C08F120/06

    CPC分类号: C08F120/06 C08F8/44

    摘要: A process for the manufacture of low molecular weight polyacrylic acids or their salts is provided, particularly, their aqueous solutions. Acrylic acid in an aqueous solution containing a polymerization initiator is polymerized in the presence of acetic acid and/or propionic acid.The solutions obtained have a low viscosity and are very stable on storage.

    摘要翻译: 提供了制备低分子量聚丙烯酸或其盐的方法,特别是其水溶液。 含有聚合引发剂的水溶液中的丙烯酸在乙酸和/或丙酸的存在下聚合。 获得的溶液具有低粘度并且在储存时非常稳定。