PREPARATION OF L-AMINO ACID
    31.
    发明专利

    公开(公告)号:JPS6062991A

    公开(公告)日:1985-04-11

    申请号:JP16904283

    申请日:1983-09-13

    Abstract: PURPOSE:To collect a converted L-amino acid in high yield, by treating an L- acyl-DL-amino acid with acylase produced by a fungus belonging to the genus Cryptococcus. CONSTITUTION:A fungus capable of producing acylase, belonging to the genus Cryptococcus, Candida, Trichosporon, is cultivated in a liquid medium. This cultivation is usually carried out by aerated spinner culture at 30-35 deg.C at 6- 8pH. The culture is directly used as an enzyme source, or a culture such as a cell-free extracted solution obtained by grinding the separated mold or mold, or separated acylase is used as the enzyme source. Namely, this acylase is made to act on an N-acyl-DL-amino acid at 30-35 deg.C at 6.0-7.0pH, it is asymmetrically hydrolyzed, to give an L-amino acid (e.g., L-methionine). In the asymmetric hydrolysis, the presence of a metal ion such as Co ion in the reaction solution promotes the reaction, and the reaction can be completed in 3-20hr.

    BUTANAL DERIVATIVE AND ITS PREPARATION

    公开(公告)号:JPS58150552A

    公开(公告)日:1983-09-07

    申请号:JP3228982

    申请日:1982-03-03

    Abstract: NEW MATERIAL:The compound of formulaI(R is alkoxycarbonyl or cyano). EXAMPLE:4-Ethoxycarbonyl-4-(diphenylmethylene)aminobutanal. USE:Useful as a synthetic intermediate of amino acids. It can be prepared with simple operation in high yield. PROCESS:The compound of formulaIcan be prepared by reacting the Schiff base of formula II e.g. N-(diphenylmethylene)glycine methyl ester, etc. when R is alkoxycarbonyl, and N -(diphenylmethylene)-glycinonitrile, etc. when R is cyano with acrolein preferably in a uniform solvent system in the presence of a base (e.g. potassium hydroxide) at

    PRODUCTION OF 2-AMINOGLUTARIMIDE
    33.
    发明专利

    公开(公告)号:JPS57197266A

    公开(公告)日:1982-12-03

    申请号:JP8157381

    申请日:1981-05-28

    Abstract: PURPOSE:N-(Diphenylmethylene)glutamic diester is cyclized in the presence of ammonia and the product is hydrolyzed in the presence of an acid to produce the titled compound used as an intermediate of drugs under mild conditions in high yield. CONSTITUTION:The cyclization of N-(diphenylmethylene)glutamic diester, which is prepared in high yield by reaction between N-(diphenylmethylene)glycine ester and acrylic ester in the presence of a base, is effected in the presence of ammonia to give 2-(diphenylmethyleneamino)glutarimide of formulaII. Then, the product is hydrolyzed in the presence of an acid to give 2-aminoglutarimide. EFFECT:The process is simplified. Further, by-products can be reused as starting substances.

    PRODUCTION OF GLUTAMINE AND ITS DERIVATIVE

    公开(公告)号:JPS57193433A

    公开(公告)日:1982-11-27

    申请号:JP7724581

    申请日:1981-05-21

    Abstract: PURPOSE:The reaction of N-(diphenylmethylene)glycine ester, which is readily available in industry, with acrylamide gives a very specific glutamine ester and hydrolysis follows the above reaction to give the titled compound simply in high yield. CONSTITUTION:The reaction of an N-(diphenylmethylene)glycine ester of formulaI(R is 1-4C alkyl) with acrylamide gives an N-(diphenylmethylene) glutamine ester of formula II. Then, the product is hydrolyzed in the presence of a base to produce a glutamine derivative of formula III. Further, the derivative is hydrolyzed in the presence of an acid. EFFECT:The by-product is used as a starting material again.

    SUBSTITUTED AMINOOOCAPROLACTAM
    35.
    发明专利

    公开(公告)号:JPS5524122A

    公开(公告)日:1980-02-21

    申请号:JP9664578

    申请日:1978-08-10

    Abstract: NEW MATERIAL:An alpha-(3-methacryloxy-2-hydroxy-propylamino)-epsilon-caprolactam of formula I, and an alpha-[bis(3-methacryloxy-2-hydroxypropyl)-amino]-epsilon-caprolactam of formula II. USE:Pesticides, raw materials for polymers, curing accelerators for epoxy resins, and intermediates for them and other compounds. PROCESS:alpha-Amino-epsilon-caprolactam is reacted with glycidyl methacrylate in a reaction solvent, e.g. an alcohol, alkyl halide, or glycidyl methacrylate itself, at room temperature to 80 deg.C to give the objective compound of formula I or II. If the temperature is low, the one-mole adduct is formed. If the temperature is high, the two-mole adduct is formed. Too high temperature causes gelation.

    SUBSTITUTED AMINOOOCAPROLACTAM
    36.
    发明专利

    公开(公告)号:JPS5520744A

    公开(公告)日:1980-02-14

    申请号:JP9405678

    申请日:1978-08-01

    Abstract: NEW MATERIAL:alpha-Substituted amino-epsilon-caprolactams of formula I [R1 is -CH2- CH(OH)-CH2Cl; R2 is H, -CH2-CH(OH)-CH2Cl]. EXAMPLE:alpha-(3-Chloro-2-hydroxypropylamino)-epsilon-caprolactam. USE:Agricultural chemicals, raw material of polymers, epoxy curing accelerator, or their intermediate or intermediate of other compounds. PREPARATION:alpha-Amino-epsilon-caprolactam of formula II resulting from Beckmann rearrangement of alpha-aminocyclohexanone oxime is made to react with epichlorohydrin of formula III in a solvent of ether at room temperature -100 deg.C to give the compound of formula I. The reaction at low temperatures gives monosubstituted product whereas at high temperatures disubstituted product in high selectivity.

    PREPARATION OF 4* 5* 6* 77TETRAHYDROOBENZIMIDAZOLINEE22THIONE

    公开(公告)号:JPS54106472A

    公开(公告)日:1979-08-21

    申请号:JP1147278

    申请日:1978-02-06

    Abstract: PURPOSE:To obtain the title compound which is an intermediate for medicines in simple procedures in high yield, by treating a specific compound, readily prepared through addition reaction between 2-amino-cyclohexanone oxime and a thioisocyanate, with an acidic substance. CONSTITUTION:A N-(2-hydroxyimino-cyclohexyl)-thiourea of formula I: (R is alkyl, allyl, or aralkyl group) is brought into contact with an acidic substance, e.g. hydrogen chloride, hydrogen bromide, sulfuric or benzenesulfonic acid, at 0- 150 deg.C, preferably 10-100 deg.C to give the objective compound of formula II. The thiourea of formula I is obtained by addition reaction of 2-amino-cyclohexanone oxime with a thiocyanate of formula IV according to the well-known method. Preferably, the amount of the acidic substance is 0.01 mole or more per mole of the compound of formula I.

    NONNELECTROLYTIC COPPER PLATING
    38.
    发明专利

    公开(公告)号:JPS54103748A

    公开(公告)日:1979-08-15

    申请号:JP1080678

    申请日:1978-02-02

    Abstract: PURPOSE:To produce a Cu film excellent in the adhesivity, luster, and color tone with addition of specified imidazole compound to the acid solution in non-electrolytic Cu plating on the iron surface using the acid solution containing Cu ion. CONSTITUTION:With an iron immersed into an acid solution containing CuSO4 or the like in an amount of 0.05 to 8 g/1, preferably 0.1 to 5 g/l, a non-electrolytic Cu plating is applied to the Fe surface under the following condition: Imidazole compound (i.g. 2-mercapto-4, 5, 6, 7-tetrahydrobenzoimidazole and 2-mercaptobenzoimidazole) as shown by the formula I (R represents alkyl group excluding H and C4) and the formula II is allowed to be present at a rate of 0.03 to 0.1 mol per mol of Cu and a plating is performed at a bath temperature of 40 to 80 deg.C for 0.5 to 30 minutes.

    PRODUCTION OF D-ASPARTIC ACID
    40.
    发明专利

    公开(公告)号:JPS615793A

    公开(公告)日:1986-01-11

    申请号:JP12520584

    申请日:1984-06-20

    Abstract: PURPOSE:In the biochemical production of the titled substance from DL-aspartic acid by action of a microorganism, a microorganism in Cryptococcus or Candida is brought into contact with substrates to give the titled substance of high purity. CONSTITUTION:A microorganism in Cryptococcus, Candida, Tricosporon and being capable of convering L-aspartic acid into an organic acid selected from hydroxycarboxylic acids and aliphatic carboxylic acids is used. In the presence of the microorganism or its processed product, DL-aspartic acid and/or its salt is subjected to the reaction and the unreacting D-aspartic acid is separated by treatment with ion-exchange resin or direct crystallization.

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