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    Production of p-dialkylbenzenes
    4.
    发明专利
    Production of p-dialkylbenzenes 未知

    公开(公告)号：GB1109578A

    公开(公告)日：1968-04-10

    申请号：GB3721166

    申请日：1966-08-19

    Applicant: BASF AG

    Inventor： STROHMEYER MAX ,  HILLER KARL ,  SCHOLZ HEINRICH ,  KINDLER HUBERT

    IPC: C07C2/70

    Abstract: p-Dialkylbenzenes are produced by reaction of alkylbenzenes and olefins in the presence of an AlCl3/HCl catalyst also containing an aromatic hydrocarbon having a carbon-carbon double bond situated in conjugation to a benzene nucleus (which for convenience of definition is assumed to contain 3 conjugated double bonds). Suitable aromatic hydrocarbons include styrene, anthracene, 2 - phenyl - cyclohexene and 1,1,3-trimethyl - 5 - isopropylindene, others also being mentioned. m- and o-dialkylbenzenes and higher alkylated by-products may be transalkylated, e.g. with benzene or an alkylbenzene in the presence of a Friedel-Crafts catalyst. The examples are all directed to the production of p-diisopropylbenzene from cumene and propylene. In Example 6, the aromatic hydrocarbon catalyst component is 1,1,3-trimethyl-5-isopropyl-indene, and the process is carried out continuously in three vessels, in the first of which tri-isopropylbenzene by-product is transalkylated with benzene in the presence of AlCl3/HCl catalyst, a small amount of 1,1,3-trimethyl-5-isopropyl-indene being produced simultaneously, the whole mixture from this vessel then being passed to a second vessel together benzene, m-dialkylbenzene, AlCl3/HCl catalyst and o- and m-dialkylbenzene by-product further transalkylation taking place, and the cumene-propylene alkylation reaction taking place in the presence of the reaction mixture from the second vessel, by-products being separated and recycled to the first, second and third vessel as appropriate.

    Production of quaternary chloroalkylammonium salts
    5.
    发明专利
    Production of quaternary chloroalkylammonium salts 未知

    公开(公告)号：GB1048234A

    公开(公告)日：1966-11-16

    申请号：GB774364

    申请日：1964-02-25

    Applicant: BASF AG

    Inventor： KOENIG KARL-HEINZ ,  DATOW JOACHIM ,  POMMER ERNST-HEINRICH ,  JUNG JOHANN ,  SCHOLZ HEINRICH

    IPC: H04L12/26

    Abstract: Quaternary 2-chloroethylammonium salts of the general formula in which R denotes an alkyl radical having 1 to 3 carbon atoms, R1 denotes a hydrogen atom and X denotes an anion, are prepared by reacting an aqueous or water-containing solution of a corresponding quaternary 2-hydroxyethylammonium salt with hydrogen chloride at a temperature of more than 100 DEG C. and at a pressure of more than 3 atmospheres gauge. Examples describe the preparation of chlorocholine chloride-(trimethyl-(2-chloroethyl)-ammonium chloride).

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