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    Production of compounds of the pyrimidine series
    3.
    发明专利
    Production of compounds of the pyrimidine series 未知

    公开(公告)号：GB860423A

    公开(公告)日：1961-02-08

    申请号：GB3593059

    申请日：1959-10-23

    Applicant: BASF AG

    Inventor： MAISACK HERBERT ,  PEUKERT DIETRICH ,  SCHOENLEBEN WILLIBALD

    IPC: C07D239/26 ,  C07D239/40 ,  C07D239/42 ,  C07D239/69

    Abstract: The invention comprises the compounds 2-sulphanilamido-5-isopropyl-pyrimidine and 2-sulphanilamido-5-heptyl pyrimidine and a general process for the preparation of pyrimidine or compounds of the pyrimidine series having substituents in the 2- and/or 5-positions wherein a salt-like compound obtainable by reaction of (a) a formamide N : N-disubstituted by aliphatic or aromatic radicals or members forming with the nitrogen atom a heterocyclic ring with (b) phosgene, phosphorus oxychloride or thionyl chloride and with (c) an alkenyl ether containing a carbon-carbon double bond in the a -position to the oxygen and as the etherifying radical an alkyl, cycloalkyl, aralkyl or aryl radical, preferably a lower alkyl radical; or an acetal of a saturated aliphatic aldehyde of 2-10 carbon atoms preferably acetalized with a lower aliphatic alcohol; or an a -chloralkyl ether wherein the chloralkyl radical has 2-10 carbon atoms the etherifying radical being preferably a lower alkyl radical, is reacted with an amidine of the formula R.C(: NH)NH2, R being hydrogen or an alkyl, aryl, thiol or amino group or an amino group substituted by an acyl, arylsulphonyl, cyano or carbonamide group, or with a salt of such a compound, in the presence of a basic condensing agent, preferably at 50 DEG to 150 DEG C. and in a lower saturated alcohol of up to 5 carbon atoms. Examples describe the preparation of 2-phenyl-, 2-amino-, 2-mercapto-, 2-sulphanilamido-(sulphadiazine), 2-cyanamido- and 2-ureido-pyrimidine and 5-methyl-, 5-ethyl-, 5-isopropyl- and 5-heptyl sulphadiazine. Specification 765,506 is referred to. p

    Production of N-Phenyl-N<1>-Alkoxy-N<1>-Alkylureas.
    4.
    发明专利
    Production of N-Phenyl-N<1>-Alkoxy-N<1>-Alkylureas. 未知

    公开(公告)号：GB1156745A

    公开(公告)日：1969-07-02

    申请号：GB5062366

    申请日：1966-11-11

    Applicant: BASF AG

    Inventor： MAISACK HERBERT ,  URBACH HANS ,  VILSMEIER WOLFGANG

    IPC: C07C273/18 ,  C07C275/64

    Abstract: 1,156,745. Substituted ureas. BADISCHE ANILIN- & SODA-FABRIK A.G. 11 Nov., 1966 [12 Nov., 1965], No. 50623/66. Heading C2C. N - Phenyl - N 1 - alkoxy - N 1 - alkylureas are prepared by reacting a 5-30 wt. per cent aq. hydroxylamine solution with a phenyl isocyanate in water in presence of a water-insoluble solvent, separating the latter without application of heat, and alkylating the reaction product. Examples describe the preparation of N-phenyl- and N - p chlorophenyl - N 1 - methoxy - N 1 - methylureas.

    Improvements in the production of carbazole
    5.
    发明专利
    Improvements in the production of carbazole 未知

    公开(公告)号：GB862606A

    公开(公告)日：1961-03-15

    申请号：GB3328459

    申请日：1959-10-01

    Applicant: BASF AG

    Inventor： SEEFELDER MATTHIAS ,  MAISACK HERBERT

    Abstract: Carbazole is produced by heating cyclohexanone-azine in the presence of at least one of the catalysts boron fluoride, its complex compounds with ethers or alcohols, a mineral acid, an acid salt of such an acid, or a neutral salt of the said acids or acid salts with a weak base, to a temperature between 150 DEG and 370 DEG C. and converting the octahydro carbazole so obtained into carbazole by heating it to temperatures in the range 200 DEG -620 DEG C. in the presence of a dehydrogenation catalyst. The process may be carried out continuously or otherwise and if desired the two steps may be combined by mixing the catalysts for the two stages and contacting cyclohexanoneazine with the mixed catalyst at 200-370 DEG C. Suitable dehydrogenation catalysts are, for example, the metals of Group Ib and VIII of the Periodic System such as copper, cobalt, nickel and platinum; oxides of metals of Group IIb, Vb and VIb such as oxides of zinc, cadinium, vanadium and chromium; and sulphides of cobalt, nickel, molybdenum, or tungsten; or mixtures of these. If desired the azine starting material may be diluted with an inert gas.

    8.
    发明专利
    未知

    公开(公告)号：FR1239120A

    公开(公告)日：1960-12-07

    申请号：FR808454

    申请日：1959-10-26

    Applicant: BASF AG

    Inventor： MAISACK HERBERT ,  PEUKERT DIETRICH ,  SCHOENLEBEN WILLIBALD

    IPC: C07D239/26 ,  C07D239/40 ,  C07D239/42 ,  C07D239/69

    Abstract: The invention comprises the compounds 2-sulphanilamido-5-isopropyl-pyrimidine and 2-sulphanilamido-5-heptyl pyrimidine and a general process for the preparation of pyrimidine or compounds of the pyrimidine series having substituents in the 2- and/or 5-positions wherein a salt-like compound obtainable by reaction of (a) a formamide N : N-disubstituted by aliphatic or aromatic radicals or members forming with the nitrogen atom a heterocyclic ring with (b) phosgene, phosphorus oxychloride or thionyl chloride and with (c) an alkenyl ether containing a carbon-carbon double bond in the a -position to the oxygen and as the etherifying radical an alkyl, cycloalkyl, aralkyl or aryl radical, preferably a lower alkyl radical; or an acetal of a saturated aliphatic aldehyde of 2-10 carbon atoms preferably acetalized with a lower aliphatic alcohol; or an a -chloralkyl ether wherein the chloralkyl radical has 2-10 carbon atoms the etherifying radical being preferably a lower alkyl radical, is reacted with an amidine of the formula R.C(: NH)NH2, R being hydrogen or an alkyl, aryl, thiol or amino group or an amino group substituted by an acyl, arylsulphonyl, cyano or carbonamide group, or with a salt of such a compound, in the presence of a basic condensing agent, preferably at 50 DEG to 150 DEG C. and in a lower saturated alcohol of up to 5 carbon atoms. Examples describe the preparation of 2-phenyl-, 2-amino-, 2-mercapto-, 2-sulphanilamido-(sulphadiazine), 2-cyanamido- and 2-ureido-pyrimidine and 5-methyl-, 5-ethyl-, 5-isopropyl- and 5-heptyl sulphadiazine. Specification 765,506 is referred to. p

    Continuous production of mucochloric acid
    10.
    发明专利
    Continuous production of mucochloric acid 未知

    公开(公告)号：GB1108965A

    公开(公告)日：1968-04-10

    申请号：GB3497065

    申请日：1965-08-16

    Applicant: BASF AG

    Inventor： MAISACK HERBERT ,  SCHLECHT HELMUT ,  URBACH HANS

    IPC: C07C315/04

    Abstract: Mucochloric acid is prepared by a continuous process by the reaction of furfurol with at least 5 moles of gaseous Cl2 per mole of furfurol in aqueous acid medium by continuously supplying the reactants and continuously withdrawing the reaction product, the reaction mixture being circulated at from ambient temperature to 130 DEG C. in a tubular recirculation system, the reactants being supplied at such a rate that the weight ratio of the furfurol added to the reaction mixture which absorbs it is constantly less than a value of 1:100.

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