PREPARATION OF PYROMELLITIC ANHYDRIDE

    公开(公告)号:JPS568388A

    公开(公告)日:1981-01-28

    申请号:JP8392579

    申请日:1979-07-04

    Abstract: PURPOSE:To obtain the titled compound, by oxidizing anthracene in the vapor phase with oxygen in the presence of a catalyst, particularly molybdenum and/or vanadium oxides. CONSTITUTION:Anthracene (A) or an organic compond containing A, e.g. an anthracene fraction, is brought into contact with oxygen or an oxygen-containing gas (G) in the presence of a vapor phase oxidation catalyst, e.g. molybdenum and/ or vanadium oxides at 300-650 deg.C to give the objective compound in a simple step efficiently without using expensive durene. The molar ratio of A to G is 1:100,000- 1:100.

    IMMUNOMODULATION TYPE THERAPEUTIC AGENT

    公开(公告)号:JPH04352724A

    公开(公告)日:1992-12-07

    申请号:JP17805891

    申请日:1991-07-18

    Abstract: PURPOSE:To provide a highly safe immunomodulation type therapeutic agent having a wide immunomodulation action, useful as a therapeutic drug for malignant tumors, various autoimmune diseases, immunodeficient diseases, infectious diseases, etc., and heightened in the effectiveness and usefulness as the drug. CONSTITUTION:An immunomodulation type therapeutic agent contains an one chain linear DNA (polydeoxyribonucleotide) containing one or more structures of the formula (m is an integer of 3-50; X1 to Xn and Y1 to Yn are monodeoxyribonucleotide, and the bases of X1 and Y1, X2 and Y2, X3 and Y3,... Xn and Yn have complementarity each other in the meaning of Watso-Crick) and having 10-100 bases, a two chain linear DNA containing at least one of the one chain linear DNA having the structure of the formula, or their salt as an active ingredient. The therapeutic agent increases the production of interferon and macrophage-activating factors, and activates NK(natural killer) cells and macrophages. The agent further increases the production of colony- stimulating factors and accelerates the multiplication of lymphocytes.

    ALPHA-HALOGENO-BETA-INDOLYLPROPIONITRILE AND ITS PREPARATION

    公开(公告)号:JPS58135863A

    公开(公告)日:1983-08-12

    申请号:JP1813682

    申请日:1982-02-09

    Abstract: NEW MATERIAL:A compound shown by the formulaI(X is halogen). USE:An intermediate for preparing tryptophan. PROCESS:An alpha-halogenoacrylonitrile or an alpha,beta-dihalogenopropionitrile is reacted with indole in a molar ratio of (0.5-5):1 in the presence of 0.02-0.5mol Friedel- Crafts catalyst (e.g., AlCl3) based on 1mol indole at -50-100 deg.C, to give a compound shown by the formula. The reaction may proceed in the absence of a solvent, a solvent such as benzene, CS2, etc. may be used, and the use of 0.001- 0.50mol hydrogen halide as a cocatalyst based on 1mol indole can provide preferable results with respect to yield and reaction rate.

    PREPARATION OF JASMONES
    30.
    发明专利

    公开(公告)号:JPS58118536A

    公开(公告)日:1983-07-14

    申请号:JP93182

    申请日:1982-01-08

    Abstract: PURPOSE:To prepare the titled compound useful as a high-quality perfume for cosmetics, soaps, etc., easily and in high yield, without using harmful metallic catalyst, etc., by using a gamma-keto-carboxylic acid ester as a raw material, and subjecting the material successively to the cyclization reaction and the alkylation reaction. CONSTITUTION:The gamma-ketocarboxylic acid ester of formulaI(R1 is substituted or unsubstituted alkyl or aryl; R2 is alkyl, alkenyl or alkynyl) is cyclized in a solvent preferably benzene, etc., in the presence of a basic catalyst (e.g. potassium tert-butoxide) at 50-200 deg.C, and the resultant 2-substituted-1,3-dioxocyclopentane of formula II is made to react with an alkylation agent selected from alkyl alkali, aryl alkali and the compound of formula III (R3 is alkyl or CH2COOR4; R4 is alkyl; X is Cl, Br or I) to obtain the objective compound of formula IV.

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