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    15.
    发明专利
    未知

    公开(公告)号：DE2160378A1

    公开(公告)日：1973-06-14

    申请号：DE2160378

    申请日：1971-12-06

    Applicant: BASF AG

    Inventor： ARMBRUST HERBERT ,  KILPPER GERHARD DR ,  QUADBECK-SEEGER HANS-JUERGEN D ,  STURM HANS-JUERGEN DR ,  KOEHLER WALDEMAR DR ,  SCHECKER HANSGEORG DR

    IPC: C07C17/26 ,  C07C1/00 ,  C07C2/42 ,  C07C13/465 ,  C07C17/00 ,  C07C17/281 ,  C07C25/22 ,  C07C67/00 ,  C07C13/46

    Abstract: 1403077 Dimerizing styrenes BADISCHE ANILIN- & SODA-FABRIK AG 5 Dec 1972 [6 Dec 1971] 55987/72 Addition to 1343445 Heading C5E 1-Alkyl-3-phenylindans are prepared by catalytically dimerizing a styrene optionally containing alkyl substituents in the presence of a surfactant and optionally a polymerization inhibitor. Suitable reaction conditions are as in the parent Specification 1,343,445. The surfactant may be anionic (e.g. carboxylates, sulphuric acid esters, alkyl sulphates, sulphated fatty acid monoglycerides or fatty acid alkylolamides, sulphated ethers, salts of lignin sulphonic acid, alkylsulphonates, alkaryl sulphonates, alkyl phosphates and salts of alkyl benzene phosphonic acids) cationic, e.g. (amine of quaternary ammonium salts, phosphonium salts and sulphonium salts) amphoteric (e.g. betaines, sulphobetaines and sulphatobetaines) or non-ionic, e.g. ethylene oxide adducts fatty acid monoglycerides, anhydrosorbitol fatty acid esters, fatty acid alkylolamides, saccharose fatty acid esters and reaction products of ethylene oxide and amines or amides). The surfactant may be used in amount 10- 5 to 10 -1 moles per mole styrene.

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