Manufacture of alkali metal salts of arabonic acid
    4.
    发明授权
    Manufacture of alkali metal salts of arabonic acid 失效
    制造阿拉伯酸碱金属盐

    公开(公告)号:US4125559A

    公开(公告)日:1978-11-14

    申请号:US798336

    申请日:1977-05-19

    CPC分类号: C07C51/235

    摘要: Alkali metal salts of arabonic acid are manufactured by oxidizing D-hexoses in the presence of alkali metal compounds under specific conditions in respect of temperature, pressure, reaction time, sequence of addition of the individual reactants and mixing.The alkali metal salts of arabonic acid which may be manufactured by the process of the invention are valuable starting materials for the manufacture of vitamins, electro-coating assistants, crop protection agents and metal complexing agents.

    摘要翻译: 通过在特定条件下,在温度,压力,反应时间,各反应物的加入顺序和混合条件下,在碱金属化合物的存在下,氧化D-己糖来制造阿拉伯酸的碱金属盐。

    Preparation of oxazolidine-2,4-diones
    7.
    发明授权
    Preparation of oxazolidine-2,4-diones 失效
    制备恶唑烷-2,4-二酮

    公开(公告)号:US4220787A

    公开(公告)日:1980-09-02

    申请号:US14770

    申请日:1979-02-23

    申请人: Herbert Scholz

    发明人: Herbert Scholz

    IPC分类号: C07D263/44

    CPC分类号: C07D263/44

    摘要: A process for the preparation of substituted oxazolidine-2,4-diones by treating a corresponding carbamate with a 2-hydroxycarboxylic acid ester at from 80.degree. to 250.degree. C.

    摘要翻译: 通过在80-250℃下用2-羟基羧酸酯处理相应的氨基甲酸酯来制备取代的恶唑烷-2,4-二酮的方法。

    Manufacture of N-[3,4-dimethylphenyl]-D-ribamine
    8.
    发明授权
    Manufacture of N-[3,4-dimethylphenyl]-D-ribamine 失效
    制备N- [3,4-二甲基苯基] -D-核糖胺

    公开(公告)号:US4180523A

    公开(公告)日:1979-12-25

    申请号:US923537

    申请日:1978-07-11

    申请人: Herbert Scholz

    发明人: Herbert Scholz

    IPC分类号: C07D475/02 C07C91/40

    CPC分类号: C07D475/02

    摘要: A process for the manufacture of N-[3,4-dimethylphenyl]-D-ribamine, in which(a) a mixture of 3,4-dimethylaniline and/or 3,4-dimethylnitrobenzene and a D-ribonic acid derivative of the formula ##STR1## where each R' is hydrogen or one of the R's together with R" is a single bond, R" is hydroxyl, R'" --O-- or, together with R', a single bond, and R'" is a hydrocarbon radical of 1 to 10 carbon atoms which may or may not be substituted by hydroxyl groups, or(b) D-ribonic acid 3,4-dimethylanilide is catalytically hydrogenated in an inert solvent at from above 100.degree. C. to 155.degree. C.

    摘要翻译: 制备N- [3,4-二甲基苯基] -D-核糖胺的方法,其中(a)3,4-二甲基苯胺和/或3,4-二甲基硝基苯和D-二甲基硝基苯的混合物 其中每个R'是氢或R和R“一个是单键,R”是羟基,R“'-O-或与R'一起形成单键,并且 R“是可以被羟基取代或不被羟基取代的1-10个碳原子的烃基,或(b)D-核糖酸3,4-二甲基苯胺在惰性溶剂中在100℃以上进行催化氢化 C.至155℃

    Manufacture of amines of the formula Ar--NH--CH.sub.2 --R
    9.
    发明授权
    Manufacture of amines of the formula Ar--NH--CH.sub.2 --R 失效
    制备式Ar {13 NH {13 CH {HD 2 {B {13 R

    公开(公告)号:US4168279A

    公开(公告)日:1979-09-18

    申请号:US839776

    申请日:1977-10-06

    申请人: Herbert Scholz

    发明人: Herbert Scholz

    CPC分类号: C07C215/76

    摘要: Amines of the formula Ar--NH--CH.sub.2 --R, where Ar is unsubstituted or substituted phenyl and R is alkyl of 3 to 6 carbon atoms substituted by hydroxyl groups, are manufactured by catalytic hydrogenation of a salt of an acid of the formula R--COOH in the presence of (a) a compound of the formula Ar--Z, where Z is a nitro or reduced nitro group, and a strong acid or (b) a salt of an amine of the formula Ar--NH.sub.2 and a strong acid, in an organic solvent.

    摘要翻译: 式Ar-NH-CH2-R的胺,其中Ar是未取代的或取代的苯基,R是被羟基取代的3至6个碳原子的烷基,是通过式R 1的酸的盐的催化氢化制备的, COOH在(a)式Ar-Z的化合物(其中Z是硝基或还原的硝基)和强酸或(b)式Ar-NH 2的胺的盐和强酸 ,在有机溶剂中。